WO2014114032A1 - 无成瘾性镇痛缓释递药系统及其制备方法 - Google Patents

无成瘾性镇痛缓释递药系统及其制备方法 Download PDF

Info

Publication number
WO2014114032A1
WO2014114032A1 PCT/CN2013/074010 CN2013074010W WO2014114032A1 WO 2014114032 A1 WO2014114032 A1 WO 2014114032A1 CN 2013074010 W CN2013074010 W CN 2013074010W WO 2014114032 A1 WO2014114032 A1 WO 2014114032A1
Authority
WO
WIPO (PCT)
Prior art keywords
drug
ropivacaine
oil
benzyl alcohol
analgesic
Prior art date
Application number
PCT/CN2013/074010
Other languages
English (en)
French (fr)
Inventor
陈涛
卢伍党
余惟平
高剑利
孔丹凤
赵青川
王惟娇
武琴园
Original Assignee
莱普德制药有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 莱普德制药有限公司 filed Critical 莱普德制药有限公司
Priority to KR1020157022974A priority Critical patent/KR101716793B1/ko
Priority to US14/762,573 priority patent/US11364299B2/en
Priority to EP13872302.8A priority patent/EP2949316B1/en
Priority to JP2015554013A priority patent/JP6205676B2/ja
Publication of WO2014114032A1 publication Critical patent/WO2014114032A1/zh

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/06Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/08Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
    • A61K47/10Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/13Amines
    • A61K31/135Amines having aromatic rings, e.g. ketamine, nortriptyline
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/21Esters, e.g. nitroglycerine, selenocyanates
    • A61K31/215Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
    • A61K31/235Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids having an aromatic ring attached to a carboxyl group
    • A61K31/24Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids having an aromatic ring attached to a carboxyl group having an amino or nitro group
    • A61K31/245Amino benzoic acid types, e.g. procaine, novocaine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/38Heterocyclic compounds having sulfur as a ring hetero atom
    • A61K31/381Heterocyclic compounds having sulfur as a ring hetero atom having five-membered rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/42Oxazoles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/445Non condensed piperidines, e.g. piperocaine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47Quinolines; Isoquinolines
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/06Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/08Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
    • A61K47/14Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/44Oils, fats or waxes according to two or more groups of A61K47/02-A61K47/42; Natural or modified natural oils, fats or waxes, e.g. castor oil, polyethoxylated castor oil, montan wax, lignite, shellac, rosin, beeswax or lanolin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0019Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/08Solutions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P23/00Anaesthetics
    • A61P23/02Local anaesthetics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/04Centrally acting analgesics, e.g. opioids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/003Filling medical containers such as ampoules, vials, syringes or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/003Adding propellants in fluid form to aerosol containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00Closing containers or receptacles after filling
    • B65B7/16Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/161Sealing filled ampoules

Definitions

  • the present invention relates to the field of pharmacy, and mainly relates to a type of non-addictive local anesthesia analgesic sustained-release delivery system.
  • pain is considered to be the fifth major vital sign of the human body following respiration, pulse, body temperature, and blood pressure. It has acute and chronic points. Postoperative pain is acute pain, which is the body's tissue damage and repair process. A complex physiological and psychological response, which is a must-have for all postoperative patients, and is one of the most urgent problems to be addressed after clinical practice.
  • postoperative pain is different from general physiological pain.
  • the main mechanism is postoperative Injury stimulates the reverse flow of cytoplasm in the axons of peripheral nerve cells, which causes the release of substance P at the nerve endings, resulting in increased local vascular permeability and tissue edema.
  • the inflammatory pain-induced substances released by the damaged tissue are slow.
  • postoperative pain can have a major impact on the function of various organs of the patient, which can cause a series of pathophysiological parameters to change, such as pain leading to abnormal autonomic activity, causing elevated catecholamines in the blood, glucagon Increased secretion, decreased insulin secretion by hyperglycemia, increased secretion of adrenocorticotropic hormone, increased secretion of cortisol, aldosterone and vasopressin, and the like.
  • the response in physiological functions can be mainly manifested in the following points: 1. Effects on mental and psychological effects - Pain can cause irritability, depression, fear, anxiety, depression, personality changes; 2.
  • Cardiovascular system changes M The elevation of catecholamines accelerates heart rate, increases myocardial contractility, increases cardiac output, peripheral vasoconstriction, increased systemic resistance, elevated blood pressure, and even painful shock during severe pain; 3.
  • Autonomic nervous system changes can cause autonomic nerves Disorders, such as sleep disorders, loss of appetite, nausea and vomiting, constipation, sweating, blood pressure changes, etc.;
  • changes in the immune system pain mainly causes the decline of immunoglobulin, resulting in slow recovery of the body, the function of phagocytic cells produces varying degrees Reduced, humoral immunity and cellular immune function have a certain degree of inhibition, slow synthesis of protein in the body, accelerated decomposition, affecting wound healing; 5, social harm: high incidence of pain, difficult diagnosis and treatment, prolonged disease, medical cost,
  • Postoperative analgesia can not only relieve postoperative pain, but also stabilize various physiological indicators of patients, which can reduce the incidence of perioperative complications, improve prognosis and significantly reduce hospitalization days.
  • Clinical medicine The drugs for postoperative analgesia and the modes of administration are as follows - Clinical medicine:
  • Opioid analgesics morphine, fentanyl, sufentanil, buprenorphine, tramadol, alfentanil, remifentanil, etc .;
  • non-steroidal anti-inflammatory painkillers aspirin, indomethacin, aminopyrine, phenylbutazone and so on.
  • patient-controlled analgesia intravenous infusion, epidural infusion, ventricle
  • transdermal administration such as fentanyl paste
  • intracavitary administration constant-velocity intravenous infusion pump input method
  • Balanced analgesia preemptive analgesia
  • dura mater oral mucosal administration
  • nasal mucosal administration etc.
  • anesthetic drugs In future research on postoperative analgesia, anesthetic drugs, new opioids, non-retained analgesic drug sustained release preparations, multimodal analgesia, and surgical site near nerve block will be hot topics in this field.
  • the purpose is mainly to improve the analgesic intensity and reduce adverse reactions, such as: continuous peripheral nerve block, patient-controlled area analgesia technique, local nerve block technique, etc., such as mid-humeral brachial plexus block, lumbar plexus block, stock Nerve-sciatic nerve block and so on.
  • Ropivacaine is a new type of long-acting ffi amine local anesthetic that has been synthesized in recent years. It is the result of optimization of bupivacaine. Its basic structure is 1 propyl 2, 6-piperidinamide hydrochloride. L-isomer ( l-propy l-2, 6-pipeco loxylidide) , ⁇
  • the ropivacaine molecule is biphasic from the dura mater: its half-life phase is 14 min and the slow phase is 4 h. Most of the cyclamate binds to plasma proteins (94%) in a concentration-dependent manner with a steady-state volume of 47 L. Its mechanism of action is the same as that of local anesthetics such as procaine, lidocaine, and bupivacaine. It acts by inhibiting nerve cell nanochannels and blocking nerve excitation and conduction [3 ' 4] .
  • ropivacaine has obvious physicochemical properties, that is, the separation of sensory-motor nerve block is obvious at low concentration, the anesthesia and pain treatment effect is exact, the cardiotoxicity is small, and the action time is long (a clinical injection can be performed once). Continued analgesia for about 8 hours, etc., suggesting that it will be more widely used in future clinical applications.
  • the object of the present invention is to provide a novel non-addictive local anesthesia sustained release analgesic delivery system, the main drug of which refers to an anesthetic analgesic, including a single local anesthetic, including local anesthetics and opioids.
  • Analgesic (medium or low doses that do not cause addiction), one of non-steroidal anti-inflammatory analgesics, a mixture of two or more, a vehicle, and a corresponding sustained release agent.
  • the delivery system of the present invention can be understood as a pharmaceutical composition, a pharmaceutical composition, a formulation or a pharmaceutical preparation.
  • the delivery system is characterized by: an oily or oily solution delivery system, and the formulation is stable and uniform.
  • the basic feature of the analgesic in the delivery system is non-addictive, including analgesic drugs with anesthesia and no anesthesia.
  • Anesthetic analgesics refer to local anesthetics, including: procaine, lidocaine, bupivacaine, levobupivacaine, ropivacaine, tetracaine, dibucaine,
  • the free base of eticacaine, the free base is also preferred, and also includes the salts thereof, and the salts thereof mainly include: mesylate, hydrochloride, citrate, sulfate, lactate, succinate,
  • An anesthetic analgesic may be one, two or two of fumarate, glutamate, ethyl sulfonate, besylate, citrate, salicylate, maleate, etc. More than one composition.
  • roachine free base and salts thereof may be preferred, and the analgesic may be one, two or more of them.
  • ropivacaine free base has the best effect.
  • Anesthetic drugs without anesthesia mainly include non-steroidal anti-inflammatory drugs and opioids (medium and low doses that do not cause addiction).
  • non-steroidal anti-inflammatory drugs include: aspirin, diclofenac sodium, ibuprofen, naproxen, naproxen, sulindac, mefenamic acid, chlorinated acid, diclofenac, flufenamic acid, B ratio Roxicam, Meloxicam, Aminopyrine, Analgin, Phenacetin, Paracetamol, Parecoxib, Rofecoxib, Valdecoxib, Nimesulide.
  • opioid analgesics include: hydromorphone, dextrozine, naloxone, naltrexone, morphine, fentanyl, sufentanil, codeine, patidine, pentazocine, Methadone, etorphine, chlorpheniramine, buprenorphine, tramadol, alfentanil, remifentanil.
  • analgesics may also be one of local anesthetic analgesics and non-organic anti-inflammatory analgesics and opioids (medium and low doses that do not cause addiction), two a mixture of two or more kinds; or a mixture of a local anesthetic analgesic and a non-retained analgesic anti-inflammatory analgesic, a mixture of two or more; or a local anesthetic analgesic and An opioid (medium or low dose that does not cause addiction) an analgesic, a mixture of two or more.
  • the dose of the opioid analgesic administered in the formulation is emphasized as a medium, low or microdose that does not cause addiction.
  • the non-steroidal anti-inflammatory drug and the opioid analgesic in the preparation may be in a free state or combined with an acid or a base to form a corresponding salt, and an analgesic may be selected as one of them. Or a mixture of more than two.
  • the analgesic sustained-release delivery system of the present invention comprises an anesthetic analgesic and a liquid adjuvant for a pharmaceutically active ingredient, wherein the concentration of the anesthetic analgesic is 1-160 mg/ml (wA, and the liquid adjuvant is sustained by the drug solvent and the drug.
  • the composition of the drug, the drug solvent ratio is 1% - 75% (v / v), the drug sustained release agent ratio is 25% - 99% "' / ⁇ ).
  • the preferred drug delivery system has the following composition: an analgesic concentration of 1-90 mg/m! (w/v), and an excipient composition ratio of preferably: a drug solvent ratio of 1% - 50% (v/v), the ratio of drug release agent is 50% - 99% (v / v).
  • the most preferred delivery system of the present invention comprises: an analgesic concentration of 12-50 mg/ml (w/v), an excipient composition ratio of: drug vehicle 10% - 40% C v/v), a drug sustained release agent 60% - 90% (v/v) c,
  • the choice of drug solvent and sustained release agent mainly refers to the current products on the market.
  • the selected examples are mainly oily long-acting intramuscular injections, mainly as shown in the following table - Table 1: Some commonly used oily long-acting intramuscular injections currently in circulation in the market Statistics
  • castor oil contraceptive drug solvent refers to the dissolution of local anesthetic analgesics (may include a local anesthetic analgesic, a mixture of two or more; or dissolve local anesthetic analgesics A natural or synthetic organic solvent, or a mixture of solvents, that does not cause addictive low or medium doses of opioid analgesics, non-organic anti-inflammatory analgesics.
  • the drug solvent preferably includes benzyl alcohol, ethanol, monoethyl oleate, ethyl lactate (green solvent, drug) 3 ⁇ 4 excipient, low toxicity, and tetrahydrofuran polyglycol ether (Medical Excipient Handbook, Fourth Edition, UK) RC Luo, Zheng Junmin translation, 3 i3- 314 pages), one of benzyl benzoate, a mixture of two or more, of which, preferably, ethanol, benzyl alcohol, benzyl benzoate, lactate B a mixture of esters, tetrahydrofuran polyglycol ethers, two or more.
  • the drug sustained release agent may be soybean oil, or may be selected from sesame oil, sunflower oil, peanut oil, castor oil, corn oil, rapeseed oil, olive oil, cottonseed oil or other natural vegetable oil or artificially modified semi-natural oil of natural vegetable oil (such as: hydrogenated castor oil, etc.), oil purification and corresponding derivatives.
  • the drug sustained release agent may also be selected from synthetic oils and fats, mainly including medium chain (carbon chain length (VC 12 ) oleate (for example: octanoic acid phthalate, one of phthalic acid triglycerides or a mixture of the two) , long chain (carbon chain length C 14 - C 24 ) trioleate, triacetin or other corresponding derivatives, ethyl oleate, white oil, dimethicone, low melting animal fats and oils.
  • medium chain (carbon chain length (VC 12 ) oleate for example: octanoic acid phthalate, one of phthalic acid triglycerides or a mixture of the two
  • long chain carbon chain length C 14 - C 24
  • trioleate triacetin or other corresponding derivatives
  • ethyl oleate white oil, dimethicone, low melting animal fats and oils.
  • the drug sustained-release preparation may also be one of a natural vegetable oil, a semi-natural vegetable fat artificially modified, a purified fat, a synthetic fat, and a low-melting animal fat, a mixture of two or more kinds.
  • the drug sustained release agent is more preferably soybean oil, and may preferably be one of oleic acid ethyl alcohol, castor oil, sesame oil, peanut oil, a mixture of two or more, and most preferably soybean oil, ethyl oleate, hydrazine.
  • sesame oil two or more
  • the corresponding solvent and slow release sputum should be non-irritating (or low irritant), and need to be refined, sterilized and pyrogen.
  • anesthetic analgesic a part of the preferred delivery system of the present invention, comprising an anesthetic analgesic and a pharmaceutically acceptable adjuvant.
  • the anesthetic analgesic concentration is 30-50 mg / ml (wA ? excipient composition ratio: the drug solvent ratio is 10% - 40% (v / v), the drug sustained release agent ratio is 60% - 90% ( v/v).
  • the drug solvent is selected from the group consisting of: phenylhydrin, benzyl benzoate, and anhydrous ethanol.
  • the drug sustained release agent is selected from the group consisting of: soybean oil, ethyl oleate, and eucalyptus oil.
  • Another object of the present invention is to provide a method for preparing an addictive anesthesia analgesic sustained release delivery system.
  • the preparation method of the non-addictive anesthesia analgesic sustained-release delivery system of the present invention comprises the following steps - A preparation of a stock solution; one of two or more kinds of anesthetic analgesics which are precisely weighed in a certain amount The mixture is dissolved in a certain volume of the drug solvent, ultrasonically or vortexed until the drug is completely dissolved, and then a prescribed amount of one, two or more sustained release agents are added, and ultrasonic or vortex mixing is used to prepare the desired sustained release. Drug system stock solution.
  • B Aseptic dispensing Under sterile conditions, remove the prepared drug solution through the membrane to remove impurities, remove bacteria, and then dispense in a vial or ampoule, a refillable syringe, a spray bottle, an aerosol bottle (if it is an aerosol) Bottles, you need to add the drug solution, then fill the propellant, and finally cover), etc., the pressure plug, the gland, can be used for the sustained release drug delivery system for analgesia.
  • compositions of the present invention can be prepared into a variety of different pharmaceutical dosage forms.
  • composition of the present invention can be prepared into the following dosage forms: an injection, a spray, an aerosol, an ointment, a cream, a coating agent, a plaster, etc., preferably an injection, a coating agent, an aerosol, a spray, and most preferably an injection. .
  • the drug carrying device may be a vial, an ampoule, a fillable syringe, a spray bottle or an aerosol bottle.
  • the non-addictive local anesthesia analgesic sustained-release delivery system is implemented by injecting analgesia to nerve nodes and nerve roots near the wound; single or multi-point injection of muscle, subcutaneous single or multiple injection or incision Applying, spraying, invigorating and relieving pain; continuous or intermittent slow administration of analgesia with an automatic, semi-automatic, manual infusion pump.
  • Still another object of the present invention is to demonstrate the clinical application of the delivery system of the present invention in the preparation of a medicament having local analgesic action.
  • a further object of the present invention is to demonstrate the clinical use of the delivery system, which is mainly for providing anesthesia and analgesic pain after surgery, and can also be used for mechanical injury wounds such as cuts, abrasions, stab wounds, burn wounds, burn wounds.
  • Anesthetic analgesia can also be anesthetic analgesia caused by cancer.
  • the invention has no addictive anesthesia analgesic sustained release delivery system (preferably ropivaca because of ⁇ description):
  • the present invention prepares a sustained-release delivery system for anesthesia and analgesia by using ropivacaine as a main drug.
  • the most characteristic feature is non-addictiveness. It can be used for local anesthesia and analgesia in the wound or other painful parts of the body, especially local anesthesia and analgesia of the wound after surgery.
  • the administration method is single or multi-point injection of wound muscle, single or multiple injection under the skin. At present, there is no sustained release drug delivery system prepared from such drugs in China and abroad, and it is used in post-operative anesthesia and analgesia.
  • the refined natural vegetable oil or synthetic oil is used as an oily sustained release agent (natural vegetable oil such as soybean oil, peanut oil, sesame oil, castor oil, etc. is a common auxiliary material for vaccines, contraceptives, and body vitamin supplement injections. It is used in the field of wound analgesia such as postoperative wounds, inflammatory wounds, mechanically damaged wounds, burnt wounds, and war wounds.
  • the present invention proposes that a mixture of any one of benzyl alcohol, benzyl benzoate and ethyl oleate and ethanol has good miscibility with soybean oil, sesame oil, corn oil, etc., and is used as the present invention.
  • the prescription system of the prescription is used as the present invention.
  • the present invention finds a mixed solvent of benzyl benzoate, benzyl alcohol, ethanol, or both, which can significantly improve the drug loading of the drug delivery system compared with a single solvent, and has a good mutual interaction. Solubilization (in the experiment, the drug was selected as: roachine free base, ropivacaine mesylate, ropivacaine hydrochloride).
  • the sustained-release preparation was prepared with ropivacaine as the main drug, and the animal (rat foot plate hot plate stimulation method, postoperative pain model Von Frey needle mechanical pain test method)
  • the duration of the neurocatheter block of mepivacin injection is about 2 hours (the literature shows that the analgesic time of the human is about 6-8 hours), while the sustained release of the present invention
  • the drug delivery system selected drug ropivacaine free base or mesylate) works quickly and the duration of action is significantly prolonged.
  • the preferred active drug, ropivacaine, in the delivery system of the present invention has a local vasoconstriction for 3 ⁇ 4, and after local administration, the amount of wound bleeding can be reduced, and the wound can be swollen and healed.
  • the active drug ropivacaine used in the delivery system of the present invention has local vasoconstriction, and after local administration, the dose of the drug into the blood circulation system through the blood vessel can be reduced, and the cardiotoxicity and nerve of the drug are partially reduced. Toxicity, compared with central analgesics, clinical deception is significantly less.
  • the analgesic pump used by the patient after surgery is used for constant analgesia or epidural infusion of drugs for analgesia.
  • the clinical main wounds are close to intramuscular injection and wounds.
  • the infiltration, ganglion injection, and the like are applied locally, so the product of the present invention is convenient to use and safer.
  • the preferred ropivacaine sustained-release delivery system of the present invention in addition to being used for local anesthesia and analgesia after surgery, can also be prepared into different administration forms, and can be used for a blistering disease, a lesion or a drug.
  • neuropathic pain facial neuralgia, trigeminal neuralgia, joint pain, muscle pain, inflammatory pain of the external hemorrhoids, pain caused by cancer, cuts, abrasions, Stab wounds and other mechanical damage wounds, pain, burn wounds, pain relief, burn wounds and pain relief, as well as gunshots, explosions, gunpowder, chemical-induced pain caused by war wounds, etc.
  • the form of administration is diverse, can be injected, smeared, sprayed Wait.
  • the most preferred main drug ropivacaine free base of the present invention, the local anesthetic sustained-release preparation prepared by the same, the ropivacaine has certain characteristics of motor nerve and sensory nerve phase separation, local anesthesia and analgesia
  • the motor block is lighter and the patient's exercise recovers faster.
  • Figure 1 Time-lapse curve of sensory nerve block in rats with ropivacaine sustained-release preparation (group 1)
  • FIG. 1 Ropivacaine sustained-release preparation (Group 2) Time curve of sensory nerve block in rats
  • Figure 4 Ropivacaine sustained-release preparation (Group 4) Time curve of sensory nerve block in rats
  • Figure 5 Time-lapse curve of intramuscular sensory nerve block in ropivacaine sustained-release preparation (Group 5)
  • Figure 6 Ropivacaine sustained-release preparation (Group 6) Time curve of sensory nerve block in rats
  • Figure 7 Ropivacaine sustained-release preparation (Group 7) Time curve of sensory nerve block in rats
  • Figure 8 Ropivacaine sustained-release preparation (group 8) Time curve of sensory nerve block in rats
  • Figure 9 Intramuscular injection of different groups of ropivacaine sustained release preparations (postoperative pain model) Time chart of sensory nerve block time
  • the prescriptions 1-8 are from the formulation of Table 4.
  • compositions, preparation method and use of the present invention are further illustrated by the following Experimental Examples and Examples, but are not to be construed as limiting.
  • the experimental results show that the solubility of ropivacaine free base in anhydrous ethanol and benzyl alcohol is more than 150 mg/rn! at room temperature, and the solubility is better.
  • benzyl benzoate, ethyl lactate, tetrahydrofuran The solubility of the glycol ether is second; the ropivacaine mesylate in the absolute ethanol, benzyl alcohol, ethyl lactate exceeds 190 mg / mi, the solubility is good, the solubility in the monoacetin is the second; hydrochloric acid
  • the solubility of ropivacaine in benzyl alcohol is more than i00 mg/mi, and the solubility is better.
  • the drug solvent can be selected from the group consisting of anhydrous ethanol, benzoquinone, benzyl benzoate and ethyl lactate.
  • monoglyceride and tetrahydrofuran polyglycol ether can be selected, wherein anhydrous ethanol and benzyl alcohol are compared. it is good.
  • Anhydrous ethanol, benzyl alcohol, ethyl lactate, benzyl benzoate, monoterpene monoacetate, tetrahydrofuran polyglycol ether are used as drug solvents, respectively, with ethyl oleate, phthalic acid first oil ester, castor oil Soybean oil, corn oil, sesame oil, medium chain Gan' oil: triester is miscible, and white oil and hydrogenated castor oil can be added to some mixed solvents to observe mutual miscibility.
  • Preferred partial delivery systems such as:
  • Benzene alcohol / benzyl benzoate chain first oil triester benzyl alcohol / ethyl oleate / soybean oil
  • Benzyl alcohol /ethyl oleate / soybean oil / white oil
  • Procaine and tetracaine have slight precipitation in the ethyl oleate//soybean oil delivery system, and the other local anesthetic drugs are in oil.
  • the solubility in the acid ethyl ester/soybean oil delivery system is good.
  • Experimental Example 7 Effects of different groups of intramuscular injection on wound healing in rats Experimental grouping and dosage: SD rats, 230-250 g, male, 65 or so, adapted for feeding for 2-3 days, screened according to body weight and divided into 10 groups, each group was 6.
  • each group was model control group, ropivacaine injection group, ropivacaine preparation - group 1, ropivacaine preparation group-2, ropivacaine preparation - Group 3, ropivacaine preparation-4, ropivacaine preparation-5, ropivacaine preparation 6, ropivacaine preparation-7, ropivacaine preparation-8 (specific prescription) See Table 4 for the specifications, the model control group was injected with normal saline, ropivacaine injection group, and ropivacaine preparation-] ⁇ 8 groups were administered at 0.5 ml/head.
  • Basic experimental protocol procedure After screening and grouping according to body weight, the rats in each experimental group were subjected to back hair removal.
  • each group dose is 0.5 ml /
  • the needle tail is facing the front side. Raise the needle 45 degrees, until the needle tip reaches the bone and retract 1mm, injecting the drug.
  • Test method The heat radiation/lifting method allows the rat to stand freely on the glass plate, and then the test is given after the animal is quiet.
  • the radiant heat source is focused by a lens and emits a light beam with a diameter of about 4 mm.
  • the irradiation intensity is adjusted (about 52' )), and the radiation source is placed under the glass plate, and the glass plate is irradiated to the bottom of the rat's hind paw.
  • the light source is connected to the timer, and when the illumination starts, the stopwatch is started at the same time.
  • the measured time interval is the evasion Should be (lifting) the incubation period.
  • the upper limit of the exposure time is 15 sec, and the excess is 15 sec.
  • the time from the placement of the hot plate to the retraction of the test paws was recorded, and each hind paw was measured twice (to prevent the plantar burn in rats, if the first measurement was 13 sec, the second test was not needed).
  • the interval between consecutive measurements of the same hind paw should be greater than 10 mi.
  • the average value of the second determination is the pain threshold for each hind paw.
  • Level 1 The paws move normally, can be dorsiflexed, stretched, and everted;
  • the paw can be dorsiflexed, curled (bent and adducted) and then stretched out but weakly stretched;
  • the paw can be dorsiflexed, but can not be stretched after curling (bending and adduction);
  • Grade 4 The paw loses dorsiflexion, the ability to curl and stretch, and the rat has gait defects.
  • i level indicates no motion block
  • level 2 indicates partial motion block
  • level 3 and level 4 indicate complete motor block, lh, 2h, 4h, 8h, 24h, 32h, 48h, 56h after administration.
  • 72h the motor block of the hind paw of the rats in each group was observed.
  • the evaluation grades were recorded and the duration of motor block was examined.
  • SPSS software was used for statistical processing. The data were compared by one-way variance. The results were expressed as mean ⁇ standard deviation; the motor block rating score was converted (level 1 is equal to 2, level 2 is equal to 2, and level 3 is equal to 3 , Level 4 is equal to 4), and then compared using the rank sum test, corpse ⁇ (X G5 indicates statistical difference, ⁇ 0.01 indicates significant statistical significance.
  • Postoperative pain model establishment method Rats were anesthetized by intraperitoneal injection of 10% chloral hydrate, about 0.5 cm from the right heel, ffi hand The knife cuts the right hind paw of the rat vertically into a 1 cm long wound, and then finds the hamstrings and muscles under the skin.] 3 ⁇ 4 small elbow scorpion picks up, and vertically cuts 3 4 knives on it (maintaining ribs) With muscles constantly, causing damage, blotting with absorbent cotton, sutured the skin of the foot, and finally injecting 50 mg of ampicillin sodium into the left hind limb to prevent infection.
  • Administration mode It is located on the line between the right femur of the rat and the ischial tuberosity, close to the right femur greater than 1/3 of the line.
  • the needle is raised 45° upwards in the anterior medial direction until the needle tip hits the bone and then retracts 1mm, and finally the drug is injected.
  • Detection method mechanical tingling-lifting method: Let the rat stand freely on the iron net, wait for it to be quiet, use the electronic 3 ⁇ 4iiFrey to measure the right hind foot, take the max value as the pain threshold, and each rat has Liu 2 Times, the interval is more than 5 minutes, and the average is taken.
  • Determination time Before administration, Ihu 2h, 4hu 8h, 24h, 32h, 48h, 56h, 72h after administration.
  • Measurement data were compared by one-way analysis of variance, expressed as mean ⁇ standard deviation ( ⁇ ⁇ ), p ⁇ (), 05 means statistically significant, P ⁇ 0.01 means significant statistical significance.
  • Ropivacaine mesylate is formulated according to commercially available specifications .
  • Methanesulfonic acid Luo Pecaine Injection Group 1 8.02 ⁇ 2.45 61.25 ⁇ 5.28** 50,47 ⁇ 3,90** 10.2 ⁇ 1.99** 1:1.4 ⁇ 3.32:12,25 ⁇ 4,58 14,23 ⁇ 3, 74 15,48 ⁇ 3,04 16,03 ⁇ 3,14 18.22 ⁇ 4.
  • Ropivacaine sustained-release preparation 2 groups 8,35 ⁇ 2,36 59.3 ⁇ 6.75** 44.51 ⁇ 6.05 ⁇ 53.32 ⁇ 6.42« 45.05 ⁇ 3.93 « 39.72 ⁇ 3.41 « 20.58 ⁇ 3.5Q « 17.65 ⁇ 7.34* 16,57 ⁇ 4,05 18,92 ⁇ 7.
  • Solvent 2 group 8.83 ⁇ 2,34 16.2 ⁇ 10.50** 9,8 ⁇ 1,92 10.63 ⁇ 3.25 * 11.77 ⁇ 2.54 12,57 ⁇ 5, 17 14.8 ⁇ 3.86 14,13 ⁇ 4, 15 15,03 ⁇ 2.51 16.57 ⁇ 5.
  • Ropivacaine sustained-release preparation 3 groups 8.55 ⁇ 2.37 53.17 ⁇ 13.13« :47,58 ⁇ 7,44** 47.17 ⁇ 5.16** 41.67 ⁇ 10.18** 38.82 ⁇ 6.54** 23,88 ⁇ 8,01** 22.421:8.56* 16.53 ⁇ 4.92 18,5 ⁇ 4, solvent 3 groups 8,87 ⁇ 3,63 20, 65 ⁇ 12,83*.
  • Ethyl oleate (or vegetable oil such as soybean oil)
  • Preparation process Take a prescribed amount of benzyl alcohol, put 10 mg of ropivacaine free base, vortex, fully dissolve it to obtain a drug solution; then slowly add vegetable oil such as ethyl oleate or soybean oil to the drug solution To 10 ml, vortex to mix, membrane filtration to remove impurities, sterilization, sub-package to vial, sealed, light-tested, packaged.
  • vegetable oil such as ethyl oleate or soybean oil
  • Ethyl oleate (or vegetable oil such as soybean oil) added to 2.5 mi
  • Preparation process Take the prescribed amount of benzyl alcohol, slowly add 1600 mg of ropivacaine free base in batches, vortex, and fully dissolve to obtain a drug solution; then slowly add ethyl oleate (or vegetable oil such as soybean oil) Into the drug solution to 10 mi, vortex to mix, membrane filtration to remove impurities, sterilization, dispense into the vial, sealed, after the light inspection, packaging.
  • ethyl oleate or vegetable oil such as soybean oil
  • Ethyl oleate (or castor oil) is added to 10 ml
  • Preparation process Take the prescribed amount of ethanol, slowly put 10 mg of ropivacaine free base to vortex, fully dissolve it to obtain the drug solution; then slowly add ethyl oleate (or castor oil) to the drug solution to 10 Ml, vortex mixing, membrane filtration, sterilization, disintegration into the vial, sealed, after the light inspection, packaging.
  • ethyl oleate or castor oil
  • Ethyl oleate (or castor oil) is added to 10 ml
  • Preparation process Take the prescribed amount of ethanol, slowly inject 750 mg of ropivacaine free base in batches, vortex, and fully dissolve to obtain a drug solution; then slowly add ethyl oleate (or castor oil) to the drug solution.
  • ethyl oleate or castor oil
  • Formulation formulation Roscaine free base 10 mg
  • Ethyl oleate (or vegetable oil such as soybean oil) is added to 10 ml
  • Preparation process Take the prescribed amount of benzyl benzoate, put: i O mg ropivacaine free base, vortex, make it fully dissolved, get the drug solution; then slow the ethyl oleate (or vegetable oil such as soybean oil) Add to the drug solution to 10 mi, vortex to mix, filter and remove impurities, except if, dispense into a vial, seal, and pass the lamp after inspection.
  • benzyl benzoate put: i O mg ropivacaine free base, vortex, make it fully dissolved, get the drug solution; then slow the ethyl oleate (or vegetable oil such as soybean oil) Add to the drug solution to 10 mi, vortex to mix, filter and remove impurities, except if, dispense into a vial, seal, and pass the lamp after inspection.
  • Ethyl oleate (or vegetable oil such as soybean oil) added to O mi
  • Preparation process Take the prescribed amount of benzyl benzoate, slowly add 500 mg of ropivacaine free base, vortex, and fully dissolve it to obtain a drug solution: then slowly add ethyl oleate (or vegetable oil such as soybean oil) Into the drug solution to 10 mi, vortex to mix, membrane filtration to remove impurities, sterilization, dispense into the vial, sealed, after the light inspection, packaging.
  • ethyl oleate or vegetable oil such as soybean oil
  • Formulation formulation Roscaine free base 50 mg
  • Ethyl oleate (or vegetable oil such as soybean oil) is added to 10 ml
  • Preparation process take a prescribed amount of benzyl alcohol and a small amount of ethyl oleate (or vegetable oil such as soybean oil), put 50 mg of ropivacaine free base, vortex, fully dissolve to obtain a drug solution; then oleic acid B Ester (or vegetable oil such as soybean oil) is slowly added to the drug solution to 10 nil, vortexed and mixed, membrane filtered to remove impurities, sterilized, dispensed into a vial, sealed, and qualified after lamp inspection.
  • ethyl oleate or vegetable oil such as soybean oil
  • Ethyl oleate (or vegetable oil such as soybean oil) is added to 10 ml
  • Preparation process Take the prescribed amount of benzyl alcohol, slowly put 1000 mg of ropivacaine free base, vortex, fully dissolve it to obtain the drug solution; then slowly add ethyl oleate (or vegetable oil such as soybean oil) to the drug Mix 10 ml into the solution, vortex and mix, remove the membrane by filtration, remove the bacteria, dispense into the vial, seal, and pass the lamp after inspection.
  • ethyl oleate or vegetable oil such as soybean oil
  • Ethyl oleate (or castor oil) is added to 10 ml
  • Ethyl oleate (or castor oil) is added to 10 ml
  • Preparation process Take the prescribed amount of ethanol, slowly inject 600 mg of ropivacaine free base, vortex, and fully dissolve to obtain a drug solution; then slowly add ethyl oleate (or castor oil) to the drug solution to 10 mi, vortex mixing, membrane filtration, removal, sterilization, dispensing into vials, sealing, after passing the lamp inspection, packaging.
  • ethyl oleate or castor oil
  • Preparation process Take the prescribed amount of benzyl alcohol, slowly inject 300 mg of romadin free base, gently heat and vortex to fully dissolve to obtain a drug solution; then slowly add ethyl oleate to the drug solution to 0 Ml, vortex mixing, membrane filtration, sterilization, sterilizing, dispensing into vials, sealing, after passing the lamp inspection, packaging.
  • Preparation process Take the prescribed amount of ethanol, slowly put 250 mg of ropivacaine free base, gently heat and vortex, fully dissolve it to obtain the drug solution; then slowly add ethyl oleate to the drug solution to i0 mi , vortex mixing, membrane filtration, sterilization, sterilizing, dispensing into the vial, sealing, after the light inspection, packaging.
  • Preparation process Take the prescribed amount of benzyl alcohol, ethanol, slowly input 450 nig ropivacaine free base, gently heat and vortex, fully dissolve, to obtain a drug solution; then slowly add ethyl oleate to the drug solution Mix to 10 ml, vortex,
  • Preparation process Take the prescribed amount of benzyl alcohol, slowly add 350 mg of ropivacaine free base and gently heat and vortex to fully dissolve to obtain the drug solution; then slowly add castor oil to the drug solution to 10 ml vortex Mix, filter, remove impurities, remove bacteria, dispense into a vial, seal, and pass the lamp after inspection.
  • soybean oil is slowly added to the drug solution to 10 ml, and the mixture is mixed, and the membrane is removed by filtration, sterilized, dispensed into a vial, sealed, and the lamp is qualified, and then packaged.
  • Preparation process Take the prescribed amount of ethanol, slowly input 250 mg of ropivacaine free base, gently heat and vortex, fully dissolve it to obtain the drug solution; then slowly add castor oil to the drug solution to 10 mi, vortex Rotate and mix thoroughly, remove the membrane by filtration, remove the bacteria, dispense into the vial, seal, and pass the lamp after inspection.
  • Preparation process take the prescribed amount of benzyl alcohol, ethyl oleate, slowly input 300 mg ropivacaine free base, gently heat and vortex, fully dissolve, to obtain a drug solution; then slowly add soybean oil to the drug solution Medium to 10 ml, vortex mixing, membrane filtration, sterilization, sterilizing, dispensing into vials, sealing, after passing the lamp inspection, packaging.
  • Preparation process Take a prescribed amount of benzyl alcohol, benzoic acid benzylic acid, 300 mg of ropivacaine free base, vortex, fully dissolve, to obtain a drug solution; then slowly add large ⁇
  • Preparation process Take the prescribed amount of ethanol, ethyl oleate, put 250 mg of ropivacaine free base, vortex, fully dissolve it to obtain a drug solution; then slowly add soybean oil to the drug solution to 10 mi, Vortex to mix, membrane filtration to remove impurities, sterilization, sub-package into the vial, sealed, after the light inspection, packaging.
  • Preparation process Take the prescribed amount of ethanol, benzyl benzoate, slowly inject 300 mg of ropivacaine free base, gently heat and vortex to fully dissolve to obtain a drug solution; then slowly add soybean oil to the drug solution Medium to 0 mi, vortex mixing, membrane filtration, removal, sterilization, dispensing into vials, sealing, after passing the lamp inspection, packaging.
  • Formulation formulation Roscaine free base 450 mg
  • Castor oil is added to 10 mi
  • Preparation process Take the prescribed amount of benzyl alcohol, benzyl benzoate, slowly put 450 mg ropivacaine free base, gently heat and vortex, fully dissolve it, get the drug solution: slowly add castor oil to the drug Mix 10 ml into the solution, vortex and mix, filter and remove impurities, filter the bacteria, dispense into the vial, seal, and pass the lamp after inspection.
  • Preparation process Take the prescribed amount of ethanol, ethyl oleate, slowly inject 300 mg of ropivacaine free base, gently heat and vortex to fully dissolve to obtain a drug solution; then slowly add castor oil to the drug solution Medium to 10 ml, vortex mixing, membrane filtration, sterilization, sterilizing, dispensing into vials, sealing, after passing the lamp inspection, packaging.
  • Preparation process Take the prescribed amount of ethanol, benzyl benzoate, put 400 mg of ropivacaine free base, gently heat and vortex, fully dissolve to obtain the drug solution; then slowly add castor oil to the drug solution To i0 mi, vortex to mix, membrane filtration to remove impurities, sterilization, dispense into the vial, seal, after the light inspection, packaging.
  • Castor oil is added to ⁇ 0 mi
  • Preparation process Take the prescribed amount of ethanol, benzyl benzoate, put 500 mg of ropivacaine free base, gently heat and vortex, fully dissolve to obtain the drug solution; then slowly add castor oil to the drug solution to 10 ml, vortex mixing, membrane filtration, sterilization, sterilizing, dispensing into vials, sealing, after passing the lamp inspection, packaging.
  • Formulation formulation Ropivacaine mesylate 120 mg
  • Preparation process Take the prescribed amount of ethanol, put 20 mg of ropivacaine mesylate, vortex, and fully dissolve to obtain the drug solution; then slowly add ethyl oleate to the drug solution to 10 ml, vortex Mixing hooks, membrane filtration and impurity removal, except if, sub-packaging into vials, sealing, after passing the lamp inspection, packaging.
  • Formulation formulation Ropivacaine mesylate 120 mg
  • Ethyl oleate (or vegetable oil such as soybean oil) is added to ⁇ 0 mi
  • Preparation process Take a prescribed amount of benzyl alcohol, put 120 mg of ropivacaine mesylate, vortex, and fully dissolve it to obtain a drug solution; then slowly add ethyl oleate (or vegetable oil such as soybean oil) to the drug. Mix 10 ml into the solution, vortex and mix, remove the membrane by filtration, remove the bacteria, dispense into the vial, seal, and pass the lamp after inspection.
  • ethyl oleate or vegetable oil such as soybean oil
  • Formulation formulation Ropivacaine mesylate 120 mg
  • Ethyl oleate (or vegetable oil such as soybean oil) added to 10 mi
  • Preparation process Take the prescribed amount of benzyl alcohol, ethanol, slowly put 120 mg of ropivacaine mesylate, vortex, fully dissolve it to obtain the drug solution; then slow the ethyl oleate (or vegetable oil such as soybean oil) Add to the drug solution to 10 mi, vortex to mix, filter to remove impurities, remove bacteria, dispense into the vial, seal, after the lamp is qualified, package.
  • Preparation process Take a prescribed amount of ethyl lactate, put 450 mg of ropivacaine free base, heat and vortex to fully dissolve to obtain a drug solution; then slowly add ethyl oleate to the drug solution to 10 m!, vortex mixing, membrane filtration, sterilization, sterilizing, dispensing into vials, sealing, after passing the lamp inspection, packaging.
  • Preparation process Take a prescribed amount of ethyl lactate, put 400 mg of ropivacaine free base, vortex, fully dissolve it to obtain a drug solution; then slowly add triacetin to the drug solution to 10 mi, vortex Rotate and mix thoroughly, remove the membrane by filtration, remove the bacteria, dispense into the vial, seal, and pass the lamp after inspection.
  • Formulation formulation Roscaine free base 350 mg
  • Preparation process Take the prescribed amount of ethanol and benzyl alcohol, slowly add 350 mg of ropivacaine free base, gently heat and vortex to fully dissolve to obtain the drug solution; slowly add 4ml of ethyl oleate to the drug solution Stir well and mix, then add soybean oil slowly to 0 mi, vortex and mix, filter and remove impurities, remove bacteria, dispense into vials, seal, and pass the lamp after inspection.
  • Castor oil (containing hydrogenated castor oil 15% (W7Y) added to 10 ml
  • Preparation process Take the prescribed amount of ethanol, slowly inject 250 mg of ropivacaine free base, gently heat and vortex to fully dissolve to obtain the drug solution; eucalyptus oil (containing hydrogenated castor oil 15% (W/V) Slowly add to 10 ml, vortex to mix, filter to remove impurities, remove bacteria, dispense into the vial, seal, after the light is qualified, package.
  • eucalyptus oil containing hydrogenated castor oil 15% (W/V) Slowly add to 10 ml, vortex to mix, filter to remove impurities, remove bacteria, dispense into the vial, seal, after the light is qualified, package.
  • Castor oil (containing hydrogenated castor oil 15% (W7V) to 10 ml
  • Preparation process Take the prescribed amount of benzyl alcohol, slowly inject 300 mg of ropivacaine free base, gently heat and vortex to fully dissolve to obtain the drug solution; castor oil (containing hydrogenated castor oil 15% (W/V) Slowly add to 10 mi, vortex mixed hook, membrane filtration and impurity removal, except if, dispense into the vial, seal, and pass the lamp after inspection.
  • castor oil containing hydrogenated castor oil 15% (W/V) Slowly add to 10 mi, vortex mixed hook, membrane filtration and impurity removal, except if, dispense into the vial, seal, and pass the lamp after inspection.
  • Soybean oil (white oil 15% (W/V) added to 10 ml
  • Preparation process Take the prescribed amount of benzyl alcohol, slowly inject 300 mg of romadin free base, gently heat and vortex to fully dissolve to obtain the drug solution; soy oil (containing 15% white oil (W/V) Slowly add to 10 ml, vortex to mix, membrane filtration to remove impurities, sterilization, dispense into the vial, seal, after the light inspection, packaging.
  • Formulation formulation Roscaine free base 350 mg
  • Preparation process Take the prescribed amount of benzyl alcohol, benzyl benzoate, slowly input 350 mg ropivacaine free base, 350 mg dextrozine, lightly heat and vortex, fully dissolve, to obtain a drug solution; Slowly add to 10 ml, vortex to mix, membrane filtration to remove impurities, sterilization, dispense into the vial, seal, after the light inspection, packaging.
  • Preparation process take the prescribed amount of absolute ethanol, benzyl benzyl acetate, slowly input 300 mg ropivacaine free base, 350 mg dextrozine, lightly heat and vortex, fully dissolve, to obtain a drug solution; Soybean oil is slowly added to 10 mi, vortex mixed hook, membrane filtration and impurity removal, except if, dispensed into a vial, sealed, and qualified after lamp inspection.
  • Preparation process Take the prescribed amount of benzyl alcohol, benzyl benzoate, slowly input 450 mg ropivacaine free base, 400 mg dextrozine, heat and vortex, fully dissolve, to obtain a drug solution; castor oil Slowly add to 10 ml, vortex to mix, membrane filtration to remove impurities, sterilization, dispense into the vial, seal, after the light inspection, packaging.
  • Preparation process take the prescribed amount of benzyl alcohol, benzyl benzoate, slowly input 350 mg ropivacaine free base, 350nig parecoxib, lightly vortex and vortex, fully dissolve, to obtain a drug solution; Soybean oil is slowly added to 10 ml, vortexed and mixed, membrane filtered to remove impurities, sterilized, dispensed into vials, sealed, and qualified after lamp inspection.
  • Soybean oil is added to 10 m!
  • Preparation process Take the prescribed amount of benzyl alcohol, slowly input 300 mg ropivacaine free base, 250nig parecoxib, slightly heat and vortex, fully dissolve it to obtain the drug solution; slowly add soybean oil to 10 Mi, vortex mixing, membrane filtration, sterilization, sterilizing, dispensing into vials, sealing, after passing the lamp inspection, packaging.
  • Preparation process Take the prescribed amount of benzyl alcohol, absolute ethanol, slowly inject 450 mg ropivacaine free base, 450mg parecoxib, gently heat and vortex to fully dissolve, to obtain a drug solution; The ester was slowly added to 10 mi, vortexed and mixed, membrane filtered to remove impurities, sterilized, dispensed into a vial, sealed, and qualified after lamp inspection.
  • Preparation process Take the prescribed amount of benzyl alcohol, slowly put 400 mg ropivacaine free base, 350mg parecoxib, gently heat and vortex, fully dissolve it to get the drug solution; slowly add castor oil to 10 Ml, vortex mixing, membrane filtration, sterilization, disintegration into the vial, sealed, after the light inspection, packaging.
  • Formulation formulation procaine free base 150 mg
  • Castor oil is added to 10 m
  • Preparation process Take the prescribed amount of benzyl alcohol, benzyl benzoate, slowly input] 5 () mg procaine free base, vortex, make it fully dissolved, get the drug solution; slowly add oyster sauce to 10 Ml, vortex mixing, membrane filtration, removal of the window, dispensing into the vial, sealing, after the light inspection, packaging.
  • Preparation process Take the prescribed amount of benzyl alcohol, benzyl benzoate, slowly inject 150 mg of dibucaine free base, gently heat and vortex to fully dissolve to obtain a drug solution; slowly add castor oil to 10 Ml, vortex mixing, membrane filtration, sterilization, disintegration into the vial, sealed, after the light inspection, packaging.
  • Formulation formulation Atticacaine free base 180 mg
  • Preparation process Take the prescribed amount of ethanol, benzyl benzoate, slowly put 180 mg of atecaine free base, gently heat and vortex to fully dissolve, get the drug solution: slowly add soybean oil to 0 mi, Vortex to mix, membrane filtration to remove impurities, sterilization, sub-package into the vial, sealed, after the light inspection, packaging.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Organic Chemistry (AREA)
  • Dermatology (AREA)
  • Emergency Medicine (AREA)
  • Pain & Pain Management (AREA)
  • Anesthesiology (AREA)
  • Dispersion Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Rheumatology (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

一种无成瘾性麻醉镇痛缓释递药系统,包括:(1)浓度为1mg/ml-160mg/ml的麻醉镇痛药物,药物选自:局部麻醉药,局部麻醉药与非甾体镇痛药和/或阿片类镇痛药的组合;(2)比例为1%-75%(ν/ν)的药物溶媒,所述溶媒选自苯甲醇、乙醇、苯甲酸苄酯、乳酸乙酯、四氢呋喃聚乙二醇醚等;(3)比例为25%-99%(v/v)的药物缓释剂,所述缓释剂选自:天然植物油、人工合成油脂、人工改进的半天然油脂及其衍生物。所述缓释递药系统的制备工艺和用途。

Description

无成瘾性镇痛缓释递药系统及其制备方法 技术领域- 本发明属于药学领域, 主要涉及到一类无成瘾性局部麻醉镇痛缓释递药系统。
背景技术- 目前, 疼痛被认为是继呼吸、 脉搏、 体温、 血压之后的人体第 5大生命体征, 它有急性 和慢性之分, 术后痛属于急性痛, 它是人体在组织损伤以及修复过程的一种复杂的生理与心 理反应, 它是所有术后患者的必经历程, 也是目前临床术后最需要处理的问题之一。
近年来, 隨着对神经科学、 疼痛基础理论研究的不断深入, 人们对于术后疼痛的产生机 制(分子水平)有了更加深刻的理解, 各国学者普遍认为: 术后疼痛不同于一般生理性疼痛, 它除了夕卜科伤口对神经末梢的机械性损伤而引起伤害性感受外, 组织损伤后炎性介质释放引 起外周系统敏感性改变也是引起术后疼痛的原因之一, 其主要机制为术后损伤刺激引起外周 神经细胞轴突中胞浆逆向流动, 从而引起神经末梢释放 P物质,使得局部血管通透性增高, 产 生组织水肿; 与此同时受损组织释放的炎性致痛物质, 如缓激肽、 组织胺、 白 Ξ:烯、 PG和其 它一些花生四烯酸代谢产物, 既可直接刺激伤害感受器又可造成周 I神经活化和敏感化, 使 正常的阈 T刺激也会产生疼痛(此诈 机理与急性炎性痛极为相似)。 新近研究结果发现, 手 术性损伤所引起的伤害性刺激也可促进中枢敏化,使得中枢神经对外周疼痛刺激反应阈降低, 时限延长 。
此外, 术后疼痛对患者的各器官功能也会产生重大的影响, 可引起一系列的病理生理性 参数发生改变, 比如疼痛导致自主神经活动异常, 引起血中儿茶酚胺的升高、 胰高血糖素分 泌增加、 胰岛素分泌减少性高血糖、 促肾上腺皮质激素分泌增加、 皮质醇、 醛固酮和抗利尿 激素分泌增加等等。反应在生理功能方面,主要可表现在以下儿点: 1、对精神与心理的影响- 疼痛可以引起患者烦躁不安、情绪低落、 恐惧、焦虑、抑郁、 性格改变; 2、 心血管系统变化: M中儿茶酚胺的升高加快心率, 心肌收缩力增强, 心输出量增加, 外周血管收缩, 体循环阻 力增加, 血压升高, 剧烈疼痛时甚至出现疼痛性休克; 3、 自主神经系统变化: 可引起自主神 经功能发生紊乱, 诸如睡眠失常、 食欲不振、 恶心呕吐、 便秘、 出汗、 血压变化等; 4、 免疫 系统变化: 疼痛主要引起免疫球蛋白下降、 导致身体康复缓慢, 吞噬细胞的功能产生不同程 度的降低, 体液免疫和细胞免疫功能均有一定程度的抑制现象, 体内蛋白质合成缓慢、 分解 加速, 影响伤口愈合; 5、 社会的危害性: 疼痛发病率高, 诊治困难、 病程迁延、 医疗耗资大、
100002 !
2010. 2 治疗费 ]¾高、 甚至一人疼痛可影响全家和四方邻居, 公民整体生活质量明显降低 p]
术后镇痛不仅可以减轻患者术后疼痛, 而且可以稳定患者各项生理指标, 即可降低患者 围手术期并发症产生机率, 又可改善预后并对缩短住院日有着显著性影响, 目前, 临床术后 镇痛的药物以及给药方式主要如下所示- 临床药物方面:
1、 阿片类镇痛药: 吗啡、 芬太尼、 舒芬太尼、 丁丙诺啡、 曲马多、 阿芬太尼、 瑞芬太尼 等;
2、 庥醉浸润药 (无成瘾性); 利多卡因、 普鲁卡因、 罗哌卡因、 布比卡因、 左布比卡因、 丁卡因、 苯佐卡因、 达克罗宁等。
3、 非留体类抗炎止痛药: 阿司匹林, 吲哚美辛, 氨基比林, 保泰松等。
给药方法;
1、 传统给药方法: 口服、 肌肉注射 (全身 ^药,、 中枢用药), 例如阿片类药物, 镇痛诈 用强但是副作用大, 反复使用易产生药物依赖性、 眩晕、 恶心、 呕吐、 便秘、 尿潴留、 嗜睡、 呼吸抑制、 精神错乱和神经系统毒性等。
2、 新型给药方法: 病人自控止痛法(静脉输注、 硬膜外输注、 脑室)、 经皮肤给药 (如 芬太尼贴)、 体腔内给药、 恒速静脉输液泵输入法、 平衡镇痛、 超前镇痛、 硬膜夕卜腔给药法、 口腔黏膜给药法、 鼻腔黏膜给药法等 (靶部位给药)。
在未来术后镇痛方面的研究中, 麻醉药物、 新型阿片类药物、 非留体镇痛药物缓释制剂、 多模式镇痛法、 手术部位付近神经阻滞法将是该领域的热点, 其目的主要为提高镇痛强度, 降低不良反应, 例如: 连续外周神经阻滞、 患者自控区域镇痛技术、 局部神经阻滞技术等, 又比如肱骨中段臂丛神经阻滞、 腰丛阻滞、 股神经-坐骨神经阻滞等等。
局部麻醉药从发现到使用己有一个半世纪的历史, 早在 860年, 在哥廷根大学的实验室 中, 德国化学家弗里德里希》维勒的学生 Aibert Niemann从古柯叶中提取出了一种生物碱并 命名为可卡因 (Cocaine), 1884年 0¾『根据: ¾2∞^1的建议, 将其用于眼部手术并取得良好 效果, 次年 Halstead和 Coming分别将可卡因用于下颌神经阻滞和狗的脊麻实验, 被认为是 该药进行局部神经阻滞和硬膜外神经阻滞的开端, 1904年 Emhron发现了普鲁卡因并于次年 由 Braum应用于临床, 1928年 Firsieb合成了丁卡因, 1943年 Lo1¾ren和 Lmidguist合成了利 多卡因, 随后进而出现了一系列的局部庥醉药物, 如苯佐卡因、 地布卡因、 布比卡因、 丙胺 卡因、 甲哌卡因等等, 直到目前为止, 已形成了酯类、 酰胺类两大类的局部麻醉药。
罗哌卡因是近儿年来新合成的一类长效 ffi胺类局麻药,它是布比卡因进一歩优化的成果, 其基本结构为 1„丙基 2、 6-盐酸哌啶酰胺类的左旋异构体( l-propy l-2, 6-pipeco loxylidide) , Η
100002 2
2010. 2 7. 4, P a 8. 1 , 脂溶性低, 解离常数高, 因而, 它对 C纤维的敏感性明显高于 A纤维, 呈现 出明显的运动神经阻滞和感觉神经阻滞相分离的现象。罗哌卡因分子从硬膜夕卜吸收呈双相性: 其半衰期快相为 14 min, 慢相为 4 h。 罗喊卡因大部分和血浆蛋白结合( 94% ), 且结合呈浓度 依赖性, 稳态分布容积为 47 L。 其作用机制与普鲁卡因、 利多卡因、 布比卡因等局麻药相同, 都是通过抑制神经细胞纳离子通道, 阻断神经兴奋与传导而发挥作用的 [3'4]
随着人们对罗哌卡因作用机理研究的不断深入以及临床应用的不断探索,该药物单 独使用或联合阿片类药物用于镇痛的疗效已得到临床广泛确认, 具体可归纳为以下几 点: 1、 局部浸润麻醉性止痛 (Sakdiaris 等 [5]在进行全身麻醉 T行腹股沟疝修补术时术 前、 术后均使用了罗哌卡因, 其镇痛效果明显持久, 不良反应少, 且优于芬太尼控释透 皮贴组); 2、 神经阻滞 赵其宏等 [6]进行了不同浓度罗哌卡因用于腋路臂丛神经阻滞的 对比研究, 他认为 0.375%罗哌卡因与 0,25%布比卡因相比较, 其用于腋路臂丛神经阻 滞起效快、 效果佳、 副作 更少); 3、 术后镇痛 CN yama 等 [7]进行了 60 倒下腹部手 术的患者的临床试验研究,将患者随机分为罗哌卡因组、吗啡组、罗哌卡因复合吗啡组, 硬膜外给药方式镇痛, 结果显示联合用药组效果更优, 杨占民等的临床研究结果更显示 了罗哌卡因与阿片类镇痛药联合应用可明显减少阿片类药物的使用量, 药效持久, 副反 应更少); 4 , 妇科分娩镇痛 (吴盛教、 肖金辉等[8'9]临床研究已经明确证明, 罗哌卡因 联合阿片类药物行硬膜外或腰-硬联合阻滞用于分娩镇痛效果确切, 对运动神经阻滞轻, 不影响产程及新生儿, 是目前分娩镇痛较为理想的药物); 5、 妇科术后镇痛 (陈顺富等 ί1()]学者临床研究结果显示, 罗哌卡因比布比卡因更适合用于妇科手术后患者自控镇痛 的局部麻醉); 6、 儿科镇痛 (熊波等["]认为 0.175%罗哌卡因术后局部浸润镇痛效果类 似于吗啡, 且恶心、 呕吐发生率较低); 7、 老年患者镇痛 (杨宗林等 [i2]研究了 0.1 %罗 哌卡因与 0, 1%布比卡因持续硬膜夕卜输注用于高龄患者下肢手术后的镇痛效果相当, 相 比之下, 罗哌卡因心脏毒性更低, 使用更加安全)。
大量临床研究结果表明, 罗哌卡因因其独特的理化特性, 即低浓度时对感觉 -运动 神经阻滞分离明显, 麻醉及疼痛治疗效果确切, 心脏毒性小, 作用时间长 (临床一次注 射可持续镇痛 8小 左右)等, 提示其在今后的临床应用中将更为广泛。
然而, 目前临床调查结果显示, 该类局部麻醉药物目前临床制剂单 ·, 只有普通的 盐酸盐或甲磺酸盐水溶液, 因此, 以局部麻醉药物为主药, 将其制备成非成瘾性缓释制 剂不仅可丰富该类药物临床使用品种,还可拓展其临床应用范围,减少其临床给药次数, 降低其临床不良反应, 凸显出很好的临床开发前景, 专利检索结果显示; 目前无该类药 物的缓释制剂的专利申请, 对于这一现实, 申请人 Lipont Pharmaceuticals Inc开发了一
100002 3
2010. 2 类可用于临床术后镇痛的非成瘾性麻醉镇痛缓释制剂的配方与制备方法。 参考文献:
1 汤王君 尹光芬等 术后疼痛与镇痛进展 [J] 大理医学院学报 2000,2 (9): 68-70.
2 姚尚龙舒化青 疼痛治疗学进展 [J] 临床内科杂志 2005, 22 ('!2): 793-796.
3 李士通 庄心良 局部麻醉学 (Local Anesthetics) 1th 2009 76 83.
4 Strichartz GR, Berde CB, Local Anesthetics, in: R ma丄 ci D. Miller: Miller' s Anesthesia. 6th edition.
5 Sakeliari s G, Petrakis I, Makatounaki , etal. Effects of ropivacaine ini i itratior; on cortiso]. and pro丄 a.ct inresporises topost operative pain af teringuinal herni oraphy in children. Pediatr Surg, 2004, 39 (9): 1400
6 赵其宏,韦鹏,代文涛 不同浓度罗派卡因用于膝路臂丛神经組滞的对比研究 [J] 实用全科医学, 2007, 5(4) :2931
7 Ni iyama Y, Kawcim ta T , Shiniizv: Η, etal , Τ he addit ion of epidural morphine to ropivacaine improves e idural analgesia after lower abdo inaJ-S urgery. Can J Anaesth, 2005, 52(2): 181
8 肖金辉 不同浓度的罗呢卡因用于分娩镇痛的临床观察 [J] 中国现代医生, 2007, 45 (6) :11 i
9 吴盛教,程文莉 s郭锋,等 ί氏浓度盐酸罗哌卡因复合芬太尼硬膜外自控分娩镇痛的临床观察 [J] 江 西医药, 2008, 43(1) :361.
10 陈顺富 妇科术后用罗哌卡因与布比卡因镇痛效果比较 [J] 九江医学, 2002, 17(3) :1331.
Π 熊波,史琪清,王炫 罗哌卡因局部浸润对小儿阑尾手术后疼痛的影响 [J] 中国临床药理学与治疗 学, 2008, 13(5) :5731.
12 杨宗林,郑荣芝,张玉勤 0.1%罗哌卡因与 0.1%布比卡因持续硬膜外输注用于高鈴患者下肢手术后 镇痛的价值 [J] 陕西医学杂志, 2008, 37(2) :2461. 发明内容
本发明的目的在于提供一种新型的无成瘾性局部麻醉缓释镇痛递药系统, 该系统主药指 麻醉性镇痛剂, 包括单一使 局部麻醉药, 也包括局部麻醉药与阿片类镇痛药 (不引起成瘾 性的中、 低剂量)、 非甾体类抗炎止痛药之一、 两种或者两种以上形成的混合物, 溶媒以及相 应的缓释剂。
本发明所述的递药系统可以理解为药物组合物、 药物组方、 配方或药物制剂。
该递药系统的特征为: 油性或油溶液型递药系统, 制剂稳定均一较好。
100002 Ά
2010.2 递药系统中所述镇痛剂的基本特征为无成瘾性,其包括有麻醉及无麻醉作用的镇痛 药物。
有麻醉作用的镇痛剂是指局部麻醉药, 主要包括: 普鲁卡因、 利多卡因、 布比卡因、 左布比卡因、 罗哌卡因、 丁卡因、 地布卡因、 依替卡因的游离碱, 游离碱较好, 也包括其盐 类, 其盐类主要包括: 甲磺酸盐、 盐酸盐、 枸橼酸盐、 硫酸盐、 乳酸盐、 琥珀酸盐、 富 马酸盐、 谷氨酸盐、 乙基磺酸盐、 苯磺酸盐、 柠檬酸盐、 水杨酸盐、 马来酸盐等, 麻醉 镇痛剂可以是其中一种、 两种或两种以上的组合物。 其中, 可优选为罗喊卡因游离碱及 其盐类, 镇痛剂可以是它 中的一种、 两种或两种以上的组合物。 其中, 罗哌卡因游离碱的 效果最好。
无麻醉作用的镇痛药物主要包括非留体抗炎药物和阿片类药物 (不引起成瘾性的中、 低剂量)。
其中, 非留体抗炎药物包括: 阿司匹林、 双氯芬酸钠、 布洛芬、 萘普生、 萘普酮、 舒林 酸、 甲灭酸、 氯灭酸、 双氯灭酸、 氟灭酸、 B比罗昔康、 美洛昔康、 氨基比林、 安乃近、 非那 西丁、 扑热息痛、 帕瑞昔布、 罗非昔布、 瓦德昔布、 尼美舒利。
其中, 阿片类镇痛药包括: 二氢吗啡酮、 地佐辛、 纳洛酮、 纳曲酮、 吗啡、 芬太尼、 舒 芬太尼、 可待因、 派替丁、 喷他佐辛、 美沙酮、 埃托啡、 布桂嗪、 丁丙诺啡、 曲马多、 阿芬 太尼、 瑞芬太尼。
此外, 镇痛剂除了单一的局部麻醉药物之外, 也可以是局部麻醉性镇痛药与非 体类 抗炎止痛药和阿片类(不引起成瘾性的中、 低剂量)之一、 两种或者两种以上形成的混合物; 或者局部麻醉性镇痛药和非留体镇痛类抗炎止痛药之一、 两种或者两种以上形成的混合物; 还可以是局部麻醉性镇痛药和阿片类 (不引起成瘾性的中、 低剂量) 镇痛药之 ·、 两种或者 两种以上形成的混合物。
制剂中所采 ^的阿片类镇痛药给药剂量强调为不引起成瘾性的中、 低或微剂量。
制剂中所应 ]¾的非留体抗炎药物与阿片类镇痛药, 其存在形式可以是游离状态、或与酸、 碱结合成相应的盐, 镇痛剂可选其中之一、 两者或者两者以上的混合物。
本发明所述的镇痛缓释递药系统由药物活性成分麻醉镇痛剂和液体辅料, 其中, 麻醉镇 痛剂浓度为 1-160 mg/ml (wA , 液体辅料由药物溶媒和药物缓释剂组成, 药物溶媒比例为 1%- 75% (v/v), 药物缓释剂比倒为 25%- 99% "'/ν)。
在上述组合物中主药与辅料比例的基础上, 优选的递药系统组成为: 镇痛剂浓度为 1-90 mg/m!( w/v),辅料构成比优选为:药物溶媒比例为 1 %- 50% ( v/v ),药物缓释剂比例为 50%- 99% ( v/v)。
100002. 3
2010. 2 最优选的本发明递药系统组成为: 镇痛剂浓度为 12- 50 mg/ml (w/v), 辅料构成比例为: 药物溶媒 10%- 40% C v/v) , 药物缓释剂为 60%- 90% (v/v) c,
药物溶媒与缓释剂的选取主要参照了目前市场上现行产品, 选取的范例主要是油性长效 肌注注射剂, 主要如下表所示- 表一: 目前市场流通的部分常用油性长效肌注注射剂统计
产品名称 十.药 生产公司 油相 非水溶剂 备注
PROLIJTON
己酸羟基孕 Schering HC 蓖麻油 笨甲酸苄酯 (46% )
DEPOT
TOCOGESTA 孕酮 Theramax 油酸乙酯 苯甲酸苄酯 (40%)
DELESTROGE 苯甲醇 ( 20%), 乙醇,
戊酸雌二醇 BMS 蓖麻油
苯甲酸苄酯
苯甲醇, 乙醇, 苯甲
DELALUTT 孕激素 BMS 蓖麻油
酸苄酯
ORISTERAR 庚酸炔诺酮 - -— 蓖麻油 避孕药 药物溶媒指是溶解局部麻醉镇痛药 (可包括局部麻醉镇痛药一种、 两种或者两种以上的 混合物; 或者溶解局部麻醉镇痛药与阿片类镇痛药 不引起成瘾性的低、 中剂量)、 非 体类 抗炎止痛药的天然或者人工合成的有机溶剂, 或者溶剂的混合物。
药物溶媒中较好的可包括苯甲醇、 乙醇、 单乙酸 油酯、 乳酸乙酯 (绿色溶剂, 药 ]¾辅 料,毒性小)、四氢呋喃聚乙二醇醚(药用辅料手册第四版,英国 R C罗著,郑俊民翻译, 3 i3- 314 页)、 苯甲酸苄酯中的之一、 二者及两者以上的混合物, 其中, 优选的为乙醇、 苯甲醇、 苯甲 酸苄酯、 乳酸乙酯、 四氢呋喃聚乙二醇醚之一、 二者及两者以上的混合物。
药物缓释剂可以为大豆油, 也可以选自芝麻油、 葵花籽油、 花生油、 蓖麻油、 玉米油、 菜子油、 橄榄油、 棉籽油或其它天然植物油或者天然植物油经人工改进的半天然油脂 (如: 氢化蓖麻油等)、 油脂纯化物及相应衍生物。
药物缓释剂也可以选自人工合成油脂, 主要包括中链 (碳链长度为(VC12) 油 酸酯 (例: 辛酸 油 Ξ酸酯、 癸酸甘油三酸酯之一或者二者混合物)、 长链 (碳链长度为 C14- C24) 油三酸酯、 三乙酸曾油酯或其它相应衍生物、 油酸乙酯、 白油、 二甲基硅油、 低熔点动物 脂肪油脂。
药物缓释制剂也可以是天然植物油、 人工改迸的半天然植物脂、 油脂纯化物、 人工合成 油脂以及低熔点动物脂肪油脂之一、 两种或者两种以上的混合物。
其中, 药物缓释剂较优选为大豆油、 也可优选为油酸乙酯、 蓖麻油、 芝麻油、 花生油之 一、 二者及两者以上的混合物, 最优选大豆油、 油酸乙酯、 蓖麻油之一、 二者及两者以上的
100002.
2010. 2 混合物。
若药物缓释制剂为局部注射用, 则相应的溶媒和缓释刺剂应无刺激性(或低刺激性)、 旦 需要精制、 除菌与热原等。
参照 (制剂与动物实验部分) 实施例, 列举出部分本发明所述的优选的递药系统, 由麻 醉镇痛剂和药用辅料组成。 其中, 麻醉镇痛剂浓度为 30-50 mg/ml ( wA ? 辅料构成比为: 药 物溶媒比倒为 10%- 40% (v/v), 药物缓释剂比例为 60%- 90% (v/v)。
其中, 药物溶媒选自: 苯曱醇、 苯甲酸苄酯、 无水乙醇。
其中, 药物缓释剂选自; 大豆油、 油酸乙酯、 蓖庥油。
本发明另一个目的在于提供无成瘾性麻醉镇痛缓释递药系统的制备方法。
本发明的无成瘾性麻醉镇痛缓释递药系统制备方法, 包括以下歩骤- A 原液制备; 将精密称取一定量的麻醉镇痛剂中的一种、 两种或两种以上的混合物溶 解于一定体积的药物溶媒中, 超声或涡旋至药物完全溶解, 然后添加处方量的一种、 两种及 两种以上缓释剂, 超声或涡旋混匀制备出所需缓释递药系统原液。
B 无菌分装: 在无菌条件下, 将制备好的药液过膜除去杂质、 除菌, 然后分装在西林瓶 或安瓿、 可填充式注射器、 喷雾瓶、 气雾瓶 (若是气雾瓶, 则需要先添加药物溶液, 然后充 入抛射剂, 最后封盖) 等容器中, 压塞, 压盖, 可得用于镇痛的缓释递药系统。
本发明组方可以制备成多种不同药物剂型。
本发明组方可以制备成以下剂型: 注射剂、 喷雾剂、气雾剂、 软膏剂、 霜剂、 涂膜剂、 膏剂等, 优选为注射剂、 涂膜剂、 气雾剂、 喷雾剂, 最优选注射剂。
本发明所述的缓释递药系统, 其载药器具可以是西林瓶、 安瓿、 可填充是注射器、 喷雾 瓶、 气雾瓶。
本发明所述的无成瘾性局部麻醉镇痛缓释递药系统, 实施方法为伤口附近神经结点、 神 经根部注射止痛; 肌肉单点或多点注射、 皮下单点或多点注射或切口涂抹、 喷洒浸润止痛; 还可以借助自动、 半自动、 手动的输液泵进行连续或者间断性缓慢给药止痛。
本发明的又一个目的在于表明了本发明所述的递药系统在制备具有局部镇痛作用药物中 的临床应用。
本发明的再一个目的表明了该递药系统的临床用途,其主要 ^于提供手术后伤口麻醉性 止痛, 也可以用于割伤、擦伤、刺伤等机械损伤伤口、烫伤伤口、烧伤伤口部位麻醉性止痛; 枪弹、爆炸、火药、化学引起的战争创伤伤口部位麻醉性止痛: 以及带状泡症、面部神经痛、 三叉神经痛、 关节痛、 外痔等疾病引起的身体局部的炎症性损伤部位麻醉性止痛; 还可以是 癌症引发的身体局部疼痛麻醉性镇痛。
100002 ?
2010. 2 本发明无成瘾性麻醉镇痛缓释递药系统 (优选罗哌卡因为^说明) 的特点有:
1、本发明第一次将罗哌卡因诈等为主药制备成麻醉镇痛作用的缓释递药系统, 该类产品 与阿片类药物相比较, 最大的特征是无成瘾性, 缓释, 其可用于身体伤口部位或其它疼痛部 位的局部麻醉镇痛, 特别是手术后的伤口局部麻醉镇痛, 给药方式为伤口肌肉单点或多点注 射、 皮下单点或多点注射, 目前国内、 外并无该类药物制备成的缓释递药系统而用于术后麻 醉镇痛的上市产品。
2、本发明第一次将精制后的天然植物油或人工合成油脂作为油性缓释剂(大豆油、 花生 油、 芝麻油、 蓖麻油等天然植物油是疫苗、 避孕药、 体类维生素补充性注射剂的常 辅料) 用于术后伤口、 炎性伤口、 机械损伤性伤口、 烧烫伤口、 以及战伤等伤口镇痛领域。
3、 本发明提出了苯甲醇、 苯甲酸苄酯、 油酸乙酯的任一种与乙醇的混合物与大豆油、 芝 麻油、 玉米油等之一具有很好的混溶性, 并将其作为本发明组方的递药体系。
4、 本发明发现了苯甲酸苄酯、 苯甲醇、 乙醇之一、 两者或 者形成的混合溶剂, 与单一 溶剂相比较而言能明显提高该递药体系的载药量, 具有很好的相互助溶性 (实验倒中, 药物 选为: 罗喊卡因游离碱、 甲磺酸罗哌卡因、 盐酸罗哌卡因)。
5、 实验例中, 以罗哌卡因诈为主药制备成缓释制剂, 动物 (大鼠足底热板刺激法, 术后 痛模型 Von Frey针机械痛测定法) 实验结果证明, 普通罗哌卡因注射液 (甲磺酸盐或盐酸 盐)神经阻滞可劉的持续时间为 2小时左右 (文献资料显示人的镇痛时间约为 6-8小时), 而 本发明的缓释递药系统 (选取药物为罗哌卡因游离碱或甲磺酸盐) 起效迅速, 作用持续时间 显著延长。
6、本发明递药体系中所优选的活性药物罗哌卡因具有局部血管收缩作 ]¾,其局部给药后, 可减少伤口出血量, 加決伤口消肿愈合。
7、本发明递药体系中所釆用的活性药物罗哌卡因具有局部血管收缩诈 ,其局部给药后, 可减少药物通过血管进入血液循环系统的剂量, 部分降低药物的心脏毒性和神经毒性, 同中 枢性镇痛药相比较, 临床副诈用会明显较少。
8、 目前, 临床实际操作中, 手术后患者较多使用的镇痛泵恒速静脉或硬膜外输注药物进 行镇痛, 本发明与之相比较, 临床主要为伤口跗近肌肉注射、 伤口浸润, 神经节部位注射等 局部给药方式, 因此本发明产品使用方便、 安全性更高。
9、 本发明所优选的罗哌卡因缓释递药系统, 除了可用于手术后的局部麻醉镇痛以外, 也 可制备成不同的给药形式, 可用于带状泡症、 病变或者药物等引发的神经性疼痛、 面部神经 痛、 三叉神经痛、 关节痛、 肌肉痛、 , 外痔炎症性疼痛、 癌症所引起的疼痛、 割伤、 擦伤、 刺伤等机械损伤伤口止痛、 烫伤伤口止痛、 烧伤伤口止痛, 以及枪弹、 爆炸、 火药、 化学引 起的战争创伤所引起疼痛等方面的镇痛治疗, 其给药形式多样, 可以注射、 涂抹、 喷洒等。
10、 本发明最优选的主药罗哌卡因游离碱, 用其所制备的局部麻醉缓释制剂, 因罗哌卡 因具有一定的运动神经和感觉神经相分离的特点, 局部麻醉镇痛时运动神经阻滞较轻, 病人 运动恢复较快。
t图说明
图 1 : 罗哌卡因缓释制剂 (组方 1 ) 大鼠肌注感觉神经阻滞时间曲线图
图 2: 罗哌卡因缓释制剂 (组方 2) 大鼠肌注感觉神经阻滞时间曲线图
图 3 : 罗哌卡因缓释制剂 组方 3 ) 大鼠肌注感觉神经阻滞时间曲线图
图 4: 罗哌卡因缓释制剂 (组方 4) 大鼠肌注感觉神经阻滞时间曲线图
图 5 : 罗哌卡因缓释制剂 (组方 5 ) 大鼠肌注感觉神经阻滞时间曲线图
图 6: 罗哌卡因缓释制剂 (组方 6) 大鼠肌注感觉神经阻滞时间曲线图
图 7: 罗哌卡因缓释制剂 (组方 7) 大鼠肌注感觉神经阻滞时间曲线图
图 8 : 罗哌卡因缓释制剂 (组方 8) 大鼠肌注感觉神经阻滞时间曲线图
图 9: 不同组方罗哌卡因缓释制剂大鼠肌注 (术后痛模型) 感觉神经阻滞时间柱状图 图中, 所述组方 1-8来自表四的配方。
具体实施方式
通过下列实验例和实施例进一步本发明组方、 制备方法、 用途进行说明, 但不作为本发 明的限制。
实验倒 1 罗哌卡因游离碱以及相应盐类的溶解性试验
分别精密称取罗哌卡因游离碱及其盐类 (甲磺酸盐、 盐酸盐) 原料药适量, 分別加入无 水乙醇、 苯甲醇、 单乙酸 油酯、 苯甲酸苄酯、 乳酸乙酯、 芝麻油、 大豆油、 油酸乙酯、 玉 米油、 蓖麻油、 橄榄油、 四氢呋喃聚乙二醇醚等各 imL 观察溶解情况, 若溶解完全, 则继 续添加药物至饱和状态, 初步确定药物在不同溶剂中的溶解度范 , 如下表所示。
罗哌卡因及其盐类在部分不同溶剂中的溶解度 (25 Ό )
Figure imgf000011_0001
Figure imgf000012_0001
实验结果显示: 常温 25 Ό, 罗哌卡因游离碱在无水乙醇、 苯甲醇中的溶解度均超过 150 mg/rn! , 溶解性较好, 在苯甲酸苄酯、 乳酸乙酯、 四氢呋喃聚乙二醇醚的溶解度次之; 甲磺酸 罗哌卡因在无水乙醇、 苯甲醇、 乳酸乙酯中的均超过 190 mg/mi, 溶解性好, 在单乙酸甘油酯 中溶解度次之;盐酸罗哌卡因在苯甲醇中的溶解度超过 i00 mg/mi,溶解性较好,在无水乙醇、 单乙酸甘油酯、 乳酸乙酯中的溶解度次之。 因此, 药物溶媒可以选取无水乙醇、 苯曱醇、 苯 甲酸苄酯、 乳酸乙酯四种, 其次 &可选取单乙酸甘油酯、 四氢呋喃聚乙二醇醚, 其中, 无水 乙醇、 苯甲醇较好。 实验例 2 该缓释制剂递药系统中 (部分) 递药体系初步筛选实验
将无水乙醇、 苯甲醇、 乳酸乙酯、 苯甲酸苄酯、 单乙酸 1†油酯、 四氢呋喃聚乙二醇醚诈 为药物溶媒, 分别与油酸乙酯、 ≡乙酸首油酯、 蓖麻油、 大豆油、 玉米油、 芝麻油、 中链甘' 油:三酸酯进行混溶, 部分混溶剂中可添加白油、 氢化蓖麻油, 观察相互混溶情况。
优选的部分递药体系如 :
苯甲醇 /油酸乙酯
苯 φ醇 /四氢呋喃聚乙二醇醚
苯甲醇 /三乙酸甘油酯
苯甲醇 /大豆油
苯甲醇 /芝麻油
苯甲醇 /玉米油
苯甲醇 /蓖麻油
苯 醇 /中链首油三酸酯
无水乙醇 /油酸乙酯
无水乙醇 /四氢呋喃聚乙二醇醚
无水乙醇 /苯甲酸苄酯
无水乙醇 /三乙酸甘'油酯
无水乙醇 /蓖麻油
无水乙醇 /油酸乙酯 /大豆油
无水乙醇 Ζ苯甲酸苄酯 Ζ:三乙酸 油酯
2010. 2 无水乙醇 /苯甲酸苄酯 /大豆油 无水乙醇 /苯甲酸苄酯 /蓖麻油
无水乙醇 /苯甲酸苄酯 /蓖麻油 /氢化蓖麻油 无水乙醇 /苯甲酸 酯 Z玉米油
无水乙醇 /苯甲酸苄酷 /四氢呋喃聚乙二醇醚 无水乙醇 /苯甲酸苄酯 /芝麻油
无水乙醇 /苯甲酸苄酯 /中链甘油三酸酯 苯 ^醇 /苯甲酸苄酯 /油酸乙酯
苯甲醇 /苯 酸 酯 /四氢呋喃聚乙二醇醚 苯甲醇 /苯甲酸苄酯 /三乙酸甘油酯
苯甲醇 /苯甲酸苄酯 /蓖麻油 /氫化蓖麻油 苯甲醇 /苯甲酸苄酯 /大豆油
苯甲醇 /苯甲酸苄酯 /大豆油 /白油
苯 ^醇 /苯甲酸苄酯沖链首油三酸酯 苯甲醇 /油酸乙酯/大豆油
苯甲醇: /油酸乙酯 /大豆油 /白油
无水乙醇 /单乙酸甘油酯 /四氢呋喃聚乙二醇醚 无水乙醇 /单乙酸甘 '油酯 /:三乙酸甘油酯 苯甲醇 /单乙酸甘油酯 /四氢呋喃聚乙二醇醚 苯 醇 /单乙酸甘油酯 Ζ三乙酸甘油酯 苯甲醇 /单乙酸甘油酷 /苯甲酸苄 ϋ
无水乙醇 /乳酸乙酯 /油酸乙酯
无水乙醇 /乳酸乙酯 /四氢呋喃聚乙二醇醚 无水乙醇 /乳酸乙酯 /—三乙酸甘油酯
无水乙醇 /乳酸乙酯 /苯甲酸苄酯
无水乙醇 /乳酸乙酯 /蓖麻油
苯甲醇 /乳酸乙酯/油酸乙酯
苯甲醇 /乳酸乙酯 ζ三乙酸甘油酯
苯甲醇 /乳酸乙酯 /四氢呋喃聚乙二醇醚 苯甲醇 /乳酸乙酯 /玉米油
苯 ¥醇 /乳酸乙酯 /芝麻油
100002. Π 2010. 2 苯甲醇 /乳酸乙酯 /大豆油
苯甲醇 /乳酸乙酯 /蓖麻油
苯甲醇 /乳酸乙酯 /苯甲酸苄酯
苯甲醇 /乳酸乙酯 /中链甘油三酸酯
苯甲醇 /无水乙醇 /蓖麻油 化蓖麻油
苯甲醇 /无水乙醇 /油酸乙酯
苯甲醇 /无水乙醇 /大豆油 /白油
苯甲醇 /无水乙醇 /玉米油
苯甲醇 /无水乙醇 /三乙酸甘油酯
苯甲醇 /无水乙醇 /芝麻油
苯甲醇 /无水乙醇 Z中链甘油三酸酯
结果提示: 苯甲醇、 苯甲酸苄酯、 油酸乙酯的任一种与乙醇的混合物与大豆油、 芝麻油、 玉米油之一具有很好的混溶性, 而乙醇单独与大豆油、 芝麻油、 玉米油之 不混溶。 蓖麻油 可与乙醇、 苯甲醇、 苯甲酸苄酯之一任意混合。 实验例 3 缓释制剂递药系统 (部分) 配方试验
分别称取一定量的布比卡因游离碱、 盐酸布比卡因、 罗顿卡因游离碱、 甲磺酸罗 卡因、 盐酸罗哌卡因、 阿片类镇痛药地佐辛、 选择性 COX- 2抑制剂帕瑞昔布, 再分别添加药物溶媒 和药物缓释剂, 观察制剂稳定情况 u 具体实验过程类似实验例 2 , 实验结果显示有" SJ能作为 该缓释制剂递药系统配方的部分递药体系组合为:
苯甲醇 /油酸乙酯
苯甲醇 /:三乙酸甘油酯
苯甲醇 /大豆油
苯甲醇 /蓖麻油
苯甲醇 /芝麻油
苯甲醇 /玉米油
苯甲醇沖链甘 '油:三酸酯
无水乙醇 /油酸乙酯
无水乙醇 /苯甲酸苄酯
无水乙醇 /三乙酸甘油酯
无水乙醇 Z蓖麻油
2010. 2 无水乙醇 /油酸乙酯 /大豆油
无水乙醇 /油酸乙酯 /玉米油
无水乙醇 /油酸乙酯 /芝麻油
无水乙醇 Z苯甲酸苄酯 Z:三乙酸 油酯 无水乙醇 /苯甲酸苄酯 /大豆油
无水乙醇 /苯甲酸苄酯 /蓖麻油
无水乙醇 /苯甲酸 S/蓖麻油 /氢化蓖麻油 无水乙醇 Z苯甲酸苄酯 /玉米油
无水乙醇 /苯甲酸苄酯 /四氢呋喃聚乙二醇醚 无水乙醇 Z苯甲酸苄酯 Z芝麻油
无水乙醇 /苯甲酸苄酯冲链甘油三酸酯 苯甲醇 /苯甲酸苄酯 /油酸乙酯
苯甲醇 /苯甲酸苄酯 /四氢呋喃聚乙二醇醚 苯甲醇 /苯甲酸苄酯 / 乙酸甘油酯 苯甲醇 /苯甲酸苄酯 /蓖麻油
苯甲醇 /苯甲酸苄酯 /大豆油
苯甲醇 /苯 φ酸苄酯 /大豆油 /白油
苯甲醇 /苯曱酸苄酯 /中链甘油 Ξ:酸酯 无水乙醇 /单乙酸甘油酯 /Ξ乙酸甘油酯 苯甲醇 /单乙酸甘油酯 /三乙酸甘油酯 苯甲醇 /单乙酸甘油酯 Ζ苯甲酸苄酯 无水乙醇 /乳酸乙酯 /油酸乙酯
无水乙醇 /乳酸乙酯 /三乙酸甘油酯 无水乙醇 /乳酸乙酯 /苯甲酸苄酯
无水乙醇 /乳酸乙酯/蓖麻油
苯甲醇 /乳酸乙酯 /油酸乙酯
苯甲醇 /乳酸乙酯 /玉米油
苯甲醇 /乳酸乙酯 Ζ芝麻油
苯甲醇 /乳酸乙酯 /大豆油
苯甲醇 /乳酸乙酯 /蓖麻油
苯甲醇 /乳酸乙酯 /苯甲酸苄酯
10000?' π 20 ι ΰ. 2 苯甲醇 /乳酸乙酯冲链甘油:三酸酯
苯甲醇 /无水乙醇 /蓖麻油
苯甲醇 /无水乙醇 /蓖麻油 /氢化蓖麻油
苯甲醇 /无水乙醇 /油酸乙酯
苯甲醇 /无水乙醇 /大豆油
苯甲醇 /无水乙醇 /玉米油
苯甲醇 /无水乙醇 Z:三乙酸 油酯
苯 φ醇 /无水乙醇 /芝麻油
苯甲醇 /无水乙醇 /中链甘油三酸酯
试验结果提示: 罗哌卡因游离碱、 甲磺酸罗哌卡因、 盐酸罗哌卡因在苯甲酸苄酯与乙醇、 苯 φ醇之一的混合物中的溶解度明显增大, 地佐辛和帕瑞昔布在乙醇、 苯甲醇、 苯甲酸苄酯、 乳酸乙酯等中的溶解性均良好。 实验倒 4 不同局部麻醉剂在缓释递药体系溶解性验证
参照实验倒 2、 3结果, 以苯甲醇 /苯甲酸苄酯 /蓖麻油、 苯甲醇 /油酸乙酯 /蓖麻油、 苯甲醇 /苯甲酸苄酯 /大豆油、 苯甲醇 /油酸乙酯 /大豆油、 乙醇 /苯甲酸苄酯 /蓖麻油、 乙醇 /油酸乙酯 /蓖 麻油、 乙醇 /苯 ^酸苄酯 /大豆油、 苯 ^醇 /中链首油三酸酯、 油酸乙酯 /大豆油递药体系为例, 验证不同局部麻醉剂在缓释递药体系中的溶解性, 局部麻醉药选取普鲁卡因游离碱、 盐酸普 鲁卡因、 利多卡因游离碱、 盐酸利多卡因、 布比卡因游离碱、 盐酸布比卡因、 丁卡因游离碱、 盐酸丁卡因、 地布卡因游离碱、 盐酸地布卡因、 阿替卡因游离碱、 盐酸阿替卡因共 12种, 分 别将 12种局部麻醉药添加到所选递药体系中, 观察药物溶解情况 (规格为 15- 20 mg/ml, 观 察条件为 25Ό , 24小时, 记录状况, 观察条件为 4Ό , 24小时, 记录状况)。
结果显示: 25O B 2种局部麻醉剂在所选不同递药体系中均溶解良好; 4°C ^†, 12种 局部麻醉剂在苯甲醇 /苯甲酸苄酯 /蓖麻油、 苯甲醇 /油酸乙酯 /蓖麻油、 苯甲醇 /苯甲酸苄酯 /大 豆油、 苯甲醇 /油酸乙酯 Z大豆油、 乙醇 /苯甲酸苄酯 /蓖麻油、 乙醇 Z油酸乙酯 /蓖麻油、 乙醇 /苯 甲酸苄酯 /大豆油、 苯甲醇 /中链油溶解性好, 制剂澄清, 普鲁卡因、 丁卡因在油酸乙酯 //大豆 油递药体系中有轻微沉淀, 其余局部麻醉药物在油酸乙酯 /大豆油递药体系中溶解性良好。
实验例 S 药物制剂体外稳定性实验
在实验例 3中所选出的罗哌卡因游离碱、 甲磺酸罗哌卡因递药体系组方经验的基础上, 选取苯 ¥醇 /油酸乙酯、 无水乙醇 /油酸乙酯、 苯甲醇 Z无水乙醇 /油酸乙酯、 苯 醇 /蓖麻油、 苯
100002 Π
2010. 2 甲醇 /大豆油、 苯甲醇 /苯甲酸苄酯 z大豆油、 无水乙醇 /苯甲酸苄酯 /大豆油、 无水乙醇 Z油酸乙 酯 /大豆油、 无水乙醇 /蓖麻油、 苯甲醇 /油酸乙酯 /大豆油、 无水乙醇 /油酸乙酯 /蓖麻油、 苯甲 醇 /苯甲酸苄酯 /蓖麻油、 无水乙醇 /苯甲酸苄酯 /蓖麻油, 苯甲醇 /苯甲酸苄酯 /油酸乙酯、 苯甲 醇 /苯甲酸苄酯 Z油酸乙酯 Z大豆油组方, 分别溶解一定量的甲磺酸罗哌卡因或者罗哌卡因游离 碱, 室温放置 24h, 观察统计其溶解稳定性, 4Ό放置 24小时, 观察统计其溶解稳定性。 表三 不同浓度罗哌卡因缓释制剂溶解稳定性实验结果
组方 添加药物备注 浓度 ( g/iiil) 常温 25°C 低温 4°C 苯甲醇 (10%) /油酸乙酯 (90%) 罗哌卡因游离碱 30 澄清 澄清 苯哪 (10%) /油酸乙酯 (90%) 罗哌卡因游离碱 35 澄清 极微暈沉淀 苯甲醇 (10%) /油酸乙酯 (90%) 罗哌卡因游离碱 40 澄清 微量 淀 无水乙醇 (10%) /ym酸乙酯 (90%) 罗哌卡因游离碱 25 澄清 漫清 无水乙醇 (10%) / 酸乙酸 (90%) 罗呢卡因游离碱 30 微暈沉淀 无水乙醇 (10%) / 酸乙酸 (90%) 罗呢卡因游离碱 3-5 少暈沉淀 苯甲醇 (8%) /无水乙醇 (8%) /油酸乙酯 罗哌^因游离碱 40 澄清 澄清 苯甲醇 (8%) /无水乙醇 (8%) /油酸乙酯 (84%) 罗哌卡因游离碱 澄清 澄清 苯甲醇 (8%) /无水乙醇 (8%) /油酸乙酯 (84%) 罗哌卡因游高碱 50 浸清 微童沉淀 苯甲醇 (10%) /蓖麻油 (90%) 罗哌卡因游离碱 35 澄清
苯曱醇 (10%) /蓖麻油 (90%) 罗哌卡因游离碱 40 澄清
苯曱醇 (10%) /蓖麻油 (90%) 罗哌卡因游离碱 澄清 微量沉淀 苯甲醇 (10%) /大豆油 (90%) 罗哌卡因游离碱 25 澄清 澄清 苯甲醇 (10%) /大豆油 (90%) 罗哌卡因游离碱 30 极微量沉淀 苯甲醇 ( 10%) /大豆油 (90%) 罗哌卡因游离碱 35 微量沉淀 无水乙醇 (10%) /蓖麻油 (90%) 罗哌^因游离碱 o 澄清 澄清 无水乙醇 (10%) /蓖麻油 (90%) 罗哌卡因游离碱 30 澄清 微量沉淀 无水乙醇 (10%) /蓖麻油 (90%) 罗哌卡因游离碱 35 澄清 微量沉淀 苯甲醇 (10%) /油酸乙 S (30%) /大豆油 罗哌卡因游高碱 30 浸清 澄清 苯甲醇 (10%) /油酸乙難 (30%) /大豆油 罗哌卡因游离碱 35 澄清 极微量沉淀 苯甲醇 (10%) /油酸乙酯 (30%) /大豆油 罗哌卡因游离碱 40 澄清 微量沉淀 苯甲醇 (10%) /苯甲酸苄 30%) /大豆油 (60%) 罗哌卡因游离碱 35 澄清 澄清 苯甲醇 (10%) /苯甲酸苄 30%) /大豆油 (60%) 罗哌卡因游离碱 40 澄清 澄清 苯甲醇 (10%) /苯甲酸苄酯 (30%) /大豆油 (60%) 罗哌卡因游离碱 45 极微量沉淀 无水乙醇 (10%) /苯甲酸苄酯 (30%) /大豆淖 (60%) 罗哌卡因游离碱 30 澄清 无水乙醇 (10%) /苯甲酸苄酯 (30%) /大豆 ¾ (60%) 罗哌^因游离碱 35 澄清 微量沉淀 无水乙醇 (10%) /苯甲酸苄酯 (30%) /大豆^ (60%) 罗哌卡因游离碱 40 澄清 沉淀 无水乙醇 (10%) /油酸乙酯 (30%) /大豆油 (60%) 罗哌卡因游高碱 浸清
无水乙醇 (10%) /油酸乙酯 (30%) /大豆油 (60%) 罗哌卡因游高碱 30 浸清 微童沉淀 无水乙醇 (10%) /油酸乙酯 (30%) /大豆油 (60%) 罗哌卡因游离碱 35 澄清 沉淀 无水乙醇 (10%) /油酸乙酯 (30%) /蓖麻油 (60%) 罗哌卡因游离碱 25 澄清 澄清 无水乙醇 (10%) /油酸乙酯 (30%) /蓖麻油 (60%) 罗哌卡因游离碱 30 澄清 澄清
100002
2010.2 无水乙醇 (10%) /油酸乙酯 (30 %) /蓖麻油 (60%) 罗哌^因游离碱 35 澄清 微量沉淀 苯甲醇 (10%) /苯甲酸苄酯 (15%) /蓖麻油 (75%) 罗哌卡因游离碱 40 澄清 澄清 苯甲醇 謹) /苯曱酸苄酯 (15 %) /蓖麻油 (75%) 罗哌卡因游高碱 , r: 浸清 澄清 苯甲醇 (!0%) /苯甲酸苄酯 (i5 %) /蓖麻油 (75%) 罗哌卡因游离碱 50 澄清 极微量沉淀 无水乙醇 (10%) /苯甲酸苄酯 ( ί5%) /蓖麻 ¾1 (75%) 罗哌卡因游离碱 30 澄清
无水乙醇 (10%) /苯曱酸苄酯 (Ί L5%) /蓖麻油 (75%) 罗哌卡因游离碱 35 澄清 澄清 无水乙醇 (10%) /苯甲酸苄酯 (} L5%) / 麻油 (75%) 罗哌卡因游离碱 40 澄清 澄清 苯甲醇 (10%) /苯 酸苄酯 (309 0 /油酸乙酯 (60%) 罗哌卡因游离碱 5 浸清 苯甲醇 (8%) /苯甲酸苄酯 (42% ) /油酸乙酯 (50%) 罗呢卡因游离碱 35 极微量沉淀 苯甲醇 (10%) /苯¥酸苄酯 (30? 0 /油酸乙酯 (30%)
罗呢卡因游离碱 35 鵷 大豆油 (30%)
苯甲醇 (8%) /苯甲酸苄酯 (42% ) /油酸乙酯 (25%)
罗呢卡因游离碱 35 极微量沉淀 大豆油 (25%)
苯甲醇 (12%) /油酸乙酯 (88%) 甲磺酸罗哌卡因 12 微量沉淀 苯甲醇 (14%) /油酸乙酯 (86%) 甲磺酸罗哌卡因 12 澄清 徼量 淀 苯甲醇 (16%) /油酸乙酯 (84%) 甲磺酸罗哌卡因 12 澄清 澄清 无水乙醇 (16%) / 酸乙酯 (84%) 甲磺酸罗哌卡因 12 浸清 微童沉淀 无水乙醇 (18%) /淖酸乙酯 (82%) 甲磺酸罗哌卡因 12 澄清
无水乙醇 (20%) /淖酸乙酯 (80%) 甲磺酸罗哌卡因 12 澄清
苯甲醇 (6%) /无水乙醇 (6%) /油酸乙酉旨 (84%) 甲磺酸罗哌卡因 12 澄清 澄清 苯甲醇 (8%) /无水乙醇 (8%) /油酸乙酯 (84%) 甲磺酸罗哌卡因 12 澄清 澄清 苯甲醇 (10%) /无水乙醇 (10%) /油酸乙酯 (84%) 甲磺酸罗哌卡因 】-2 澄清 微量沉淀 实验结果显示: 在不同温度下, 组方 1、苯甲醇 (8%) /无水乙醇(8%) /油酸乙酯(84%)、 2、 苯甲醇 (10%) /蓖麻油 (90%)、 3、 苯甲醇 (10%) Z油酸乙酯 (30%) /'大豆油 (60%)、 4、 苯甲醇 (10%) /苯甲酸苄酯 (30%) /大豆油 (60%)、 5、 苯甲醇 (10%) /苯甲酸苄酯 (15%) /蓖麻油 (75%)、 6、 无水乙醇 (10%) /苯甲酸苄酯 (15%) /蓖麻油 (75'½)、 7、 苯甲醇 (10%) Z苯甲酸苄酯(30%)Z油酸乙酯 (60%)、 8、苯甲醇(8%)/苯甲酸苄酯(42%)/油酸乙酯 (50%)、 9、 苯甲醇 (10%) /苯甲酸苄酯 (30%) /油酸乙酯 (30%) /大豆油 (30%)、 10、 苯甲醇 (8%) /苯甲酸苄酯 (42%) /油酸乙酯 (25%) Z大豆油 (25%) 中罗哌卡因游离碱的最大浓度约为 35 mg/ml; 组方 ii、 苯甲醇 (10%) Z油酸乙酯 (90%)、 12、 苯甲醇 (10%) /大豆油 (90%)、 13、 无水乙醇 (10%) /苯甲酸苄酯 (30%) /大豆油 (60%)、 14、 无水乙醇 (10%) /油酸乙 酯 (30%) /蓖麻油 (60%) 中罗哌卡因游离碱的最大浓度超过 30 mg/mh 而甲磺酸罗哌卡因 在不同组方中的溶解度略差于罗哌卡因游离碱。 在各缓释制剂溶解稳定的前提下, 对罗哌卡因游离碱溶解性较好的组方进行浓度溯定, 主要过程为: 对 4Γ保存 24h时的溶解性较好的组方, 常温放置 30天后, 观察澄清度后筛选 出较好的进行浓度测定, 具体结果如下表所示:
100002 m
2010.2 表四 罗哌卡因缓释制剖结构稳定性 (含量测定) 实验结果
' 组方 添加药物 浓度■ (ffig/!n丄 )测定浓度 (rag/ffil )
1 苯甲醇 ( 10%) /苯甲酸苄酯 ( 15%) /大豆油 ( 75%) 罗哌卡因游离碱 35 35. 5
2 无水乙醇 ( 10%) /苯甲酸苄酯 ( 15%) /大豆油 ( 75% ) 罗哌卡因游离碱 30 29. 7
3 苯曱醇 (8%) /'无水乙醇 (8%) /'油酸乙酯 ( 84%) 罗哌卡因游离碱 45 44. 3
4 苯哪 ( 10%) /蓖麻油 ( 90%) 罗哌^因游离碱 40 41. 2
5 苯甲醇 ( 10%) /¾酸乙酯 ( 30% ) /大豆油 (60%) 罗哌卡因游离碱 30 30, 2
6 苯甲醇 ( 10%) /苯甲酸苄酯 ( 15% ) /蓖麻油 ( 75%) 罗哌卡因游离碱 45 45. 9
无水乙醇 ( 10%) /苯甲酸苄酯 ( 15%) /蓖麻油 ( 75% ) 罗哌卡因游离碱 40 39, 8
8 苯甲醇 ( 10%) /大豆油 ( 90%) 罗哌卡因游高碱 30 30. 3 实验结果显示, 罗哌卡因游离碱在不同组方中的结构稳定, 实验例 6 无成瘾性麻醉镇痛缓释制剂复方的初步研究 在组方表四的基础上,分别在其递药系统中投入不同剂量的阿片类镇痛药物地佐辛和选 择性 C0X- 2抑制剂帕瑞昔布, 在常温 25°C和低温 4'Ό (持续 24 h左右) 观察制剂稳定性, 具 体结果表明, 帕瑞昔布在递药系统中的溶解性均在 20 mg/inl以上 (普通注射剂为 40 mg/次, 6 -12 h/次, 日剂量不超过 80 mg), 地佐辛在递药系统中的溶解性均大于 30 ing/ml (普通注 射剂: 10 mg/次, 2- 4h/次, 日剂量不超过 120 mg) , 因此, 在该递药系统中可同时使用地佐 辛或帕瑞昔布与罗哌卡因游离碱二者的混合物, 从而可以构成具有协同镇痛作用 (不同作用 靶点镇痛药物同时使 ]¾具有一定的协同性) 的缓释镇痛复方制剂。 实验例 7 不同组方肌注对大鼠伤口愈合的影响 实验分组与给药剂量: SD大鼠, 230-250g, 雄性, 65只左右, 适应性饲养 2-3天后, 依 照体重筛选并分为 10组, 每组为 6 .只, 各组分别为模型对照组、 罗哌卡因注射液组、 罗哌卡 因制剂 - 1组、 罗哌卡因制剂 -2组、 罗哌卡因制剂 -3组、 罗哌卡因制剂 -4组、 罗哌卡因制剂 -5 组、 罗哌卡因制剂6组、 罗哌卡因制剂—7组、 罗哌卡因制剂 -8组 (具体组方与规格见表四), 模型对照组注射生理盐水、 罗哌卡因注射液组、 罗哌卡因制剂 -】〜 8组给药量为 0.5ml/只。 基本实验方案过程: 试验动物在进行筛选和依照体重分组后, 各实验组大鼠先迸行背部 脱毛, 次日手术建立 2cm* lcm大鼠背部全层缺损创面模型并计为 DO, 拍照记录。 随机分组, 按组给药, 给药方式为创口爾近多点肌肉注射。 观测指标; 分别在给药后 Di , D3 , D7, D14 , D21 不同时间点观测各组大鼠创面愈合 情况, 并依照创面愈合面积与恢复情况进行评分并拍照记录。
2010. 2 结果^价: 如表五所示, 对于不同组别、 不同观测点大鼠创面愈合情况进行对比性评价, 结果表明, 不同组方罗哌卡因缓释制剂组方对大鼠伤口愈合无明显影响。 表五 不同处方罗哌卡因制剖对大鼠伤口愈合情况评分 (^6 )
分组 M D3 D7 D14 D21 空白对照组 —— Ϊ 8. 37% 49. 36% 88. 38% 97. 39% 甲磺酸罗哌卡因注射液组 —— 22. 4 1% 55. 3 1 % 79. 27% 96. 37% 罗哌卡因制剂 1组 —— 19. 32% 61. 97% 89. 26% 98. 13% 罗哌卡因制剂 2组 —— 24. 42% 49. 12% 90. 15% 96. 58% 罗哌卡因制剂 3组 28. 18% 57, 30% 93. 27% 94. 96% 罗哌卡因制剂 4组 —— 20. 21% 54, 18% 87. 36% 98. 46% 罗哌卡因制剂 5组 —— 22. 87% 57. 26% 81. 25% 99. 15% 罗哌卡因制剂 6组 —— 19. 90% 51. 74% 78. 54% 96. 33% 罗哌卡因制剂 7组 —— 23. 45% 62. 57% 85. 42% 99. 37% 罗呢卡因制剂 8组 19. 81% 58. 22% 79. 48% 96. 75% 实验例 8 不同组方的罗哌卡因缓释制剂药效学研究(热刺激法) 实验分组及给药剂量: SD大鼠, 230-250g, 雄性, 110只左右, 适应性伺养 2 3天后, 进行实验, 本实验共分为 17组, 各组分别为罗喊卡因注射液组、 罗哌卡因制剂-】组、 溶剂 1 组、 罗哌卡因刺剂 -2组、 溶剂 2组、 罗哌卡因制剂 -3组、 溶剂 3组、 罗哌卡因制剂 -4组、 溶 剂 4组、 罗哌卡因制剂 -5组、溶剂 5组、 罗喊卡因制剂 -6组、溶剂 6组、 罗哌卡因制剂 -7组、 溶剂 7组、 罗哌卡因制剂 -8组、溶剂 8组 具体组方与规格见表四), 各组给药量均为 0.5 ml/
R>。
具体实验过程为:
1、 感觉神经阻滞试验, 在 110只雄性 SD大鼠中筛选出反应时间为 6- 8s的动物(筛选方 法为热辐射法, 具体操作见检测方法) 102只, 分为 Π组, 具体如上段所述。 各组分别注射 甲磺酸罗喊卡因注射液, 不同组方罗哌卡因缓释制剂与相应空白溶剂, 给药剂量为 0.5mi/只。 具体操作方式为: 用适量乙醚将大鼠麻醉, 在位于右肱骨大转子和坐骨神经结 之间连线上, 在靠近右肱骨大转子连线上的 1/3点处, 朝前内侧方向针尾抬高 45度进针, 直至针尖抵达骨 头后回缩 1mm, 注入药物。 检测方法: 热辐射 /抬足法, 令大鼠自由站立在玻璃板上, 待动物安静后再给予测定。 辐 射热源经透镜聚焦后发射出直径约 4毫米的光束, 调节照射强度 (约 52'Ό左右), 将辐射光 源至于玻璃板下, 隔玻璃板照射大鼠后掌底部。 光源与 ^时器相连, 郎当照射幵始同时启动 秒表, 当动物后足抬起时, :光源自动关闭并同时停止计时。 所测得的时间间隔即为其逃避反 应 (抬足) 的潜伏期。 以 15 sec为其照射时间的上限, 超过则按 15 sec计。 记录大鼠受试后 爪从放置热板即刻至回缩的时间, 每只后爪各测 2次 (为防止大鼠足底灼伤, 若首次测定 13 sec, 则不需要测定第 2次), 同一只后爪连续测定的间隔时间应大于 10 mi 二次测定的平 均值诈为各后爪的痛阈值。 检测时间; 各实验组于给药前、 给药后 ih、 211-, 4h、 811-, 24h、 32h、 48h、 56h、 72h记 录各组大鼠给药侧的抬足 间, 分别测定 2次取平均值作为该时点的该惻后足的给药后潜^ 期 (posl-drumg latency,D:L .) »
2、运动神经阻滞测定: 在观察感觉阻滞的同时, 采用四级评分法对各处理组大鼠运动神 经阻滞的情况进行评价-
1级: 爪子正常运动, 可背屈, 伸屐, 外翻;
2级: 爪子可背屈, 卷曲 (弯曲和内收) 后可再伸展开但伸展能力较弱;
3级: 爪子可背屈, 但卷曲 (弯曲和内收) 后不能再伸展幵;
4级: 爪子失去背屈, 卷曲和伸展的能力, 并且大鼠有步态缺陷。
其中 i级表示无运动阻滞, 2级表示有部分运动阻滞, 3级及 4级表示发生完全运动阻滞, 于给药后 lh、 2h、 4h、 8h、 24h、 32h、 48h、 56h、 72h观察各组大鼠给药侧后爪的运动阻滞 情况, 记录评价级数, 考察运动阻滞持续时间。
统计学处理
采用 SPSS软件进行统计学处理, †量资料采用单因素方差进行比较, 结果以均数士标准 差 表示; 运动阻滞评级得分进行转换 (一级等于 1 , 二级等于 2, —三级等于 3, 四级 等于 4), 然后采用秩和检验进行比较, 尸 <(X G5表示具有统计学差异, <0. 01 表示具有 显著统计学意义。
实验结果
实验结果如表七、 八, 附图一〜八, 不同组方的罗哌卡因缓释制剂均有一定的持续性镇 痛作用, 部分制剂可持续 24小时甚至 32小时以上, 不同组方溶剂 (如表九、 十, 附图一〜 八所示) 对主药药效无明显干扰。 实验例 9 不同组方罗哌卡因缓释制剂药效学研究(术后痛模型) 实验动物: SD大鼠, 300-330g, 雄性, 70只左右, 适应性饲养 2-3天后, 进行术后痛模 型的建立。 术后痛模型建立方法: 腹腔注射 10 % 水合氯醛麻醉大鼠, 距右脚后跟约 0。5 cm, ffi手 术刀将大鼠右后脚足底竖向切开一个 1 cm长的伤口, 然后找到皮下的脚筋与肌肉, ]¾小弯头 镊子挑起, 在其上竖切 3- 4刀 (保持筋与肌肉不断), 造成损伤, 用脫脂棉吸干流血, 褥式缝 合足底皮肤, 最后于左后肢肌肉注射 50 mg氨苄西林钠预防感染。 实验分组与给药剂量: 手术结束后, 令大鼠恢复 ·夜, 第二天早晨测定 (机械刺痛-抬足 法)痛阈值后, 依照痛阈值随机分为 10组, 每组为 6只, 分别为模型对照组, 磺酸罗哌卡 因注射液 1组, 罗哌卡因制剂 -2组, 溶剂 2组, 罗哌卡因制剂 -3组, 溶剂 3组, 罗哌卡因制 剂„4组, 溶剂 4纟 11、 罗哌卡因制剂 -5组, 溶剂 5组 (具体组方与规格见表六), 罗哌卡因注 射液组、 罗哌卡因制剂 -2〜5组、 溶剂 2〜5组给药量均为 0.5ml/只。 给药方式: 在位于大鼠右股骨大转子和坐骨结节之间连线上, 靠近右股骨大转子连线上 1/3点处, 朝前内侧方向针尾抬高 45° 进针, 直至针尖碰到骨头后回缩 1mm, 最后注入药物。
检测方法, 机械刺痛-抬足法: 令大鼠自由站立在铁网上, 待其安静后, 用电子 ¾iiFrey 针对其右后脚进行测定,取 max值作为痛阈值,每只大鼠各劉定 2次, 期间间隔 5分钟以上, 取平均值。
测定时间: 给药前, 给药后 Ihu 2h、 4hu 8h、 24h、 32h、 48h、 56h、 72h。
数据分析: 采用 软件进行统†学处理。 计量资料采用单因素方差分析进行比较, 以均数士标准差 (^± )表示, p <(),05表示具有统计学差异, P <0.01表示具有显著统计 学意义。
表六 术后痛实验组方
编号 组方 添加药物备注 浓度 (ITlg/ffi]_) 测定浓度 (ffig/mi)
注射用水 (100%) /药用氯化钠 甲磺酸罗哌卡因 !2 11.8
2 苯甲醇 ( 10%) /苯甲酸苄酯 ( 15%) /蓖麻油 (75? ) 罗哌卡因游离碱 45 45.7
0 乙醇 (1 )%) /苯 ¥酸苄酯 (1 5%) /蓖麻油 (75%; 罗哌卡因游离碱 50 49.2
4 苯甲醇 ( 10%) /苯甲酸苄酯 ( 15%) /大豆油 (75? ) 罗哌卡因游离碱 35 35. 1
5 无水乙醇 Ci0%) /苯曱酸苄酯 (15%) /大豆 ¾1 (7, 1%) 罗哌卡因游离碱 30 31, i 注: 甲磺酸罗哌卡因依照市售规格配制。 实验结果: 如表十一、 附图九所示, 罗哌卡因注射液给药剂量较小 (给药剂量若同缓释 制剂一样则可引起动物行动异常甚至死亡), 可持续镇痛时间为 2小时左右, 而不同实验组方 的罗哌卡因缓释制剂的持续性镇痛时间至少为 24小时, 个别处方可达到 32小^以上, 罗哌 卡因缓释制剂持续性镇痛药效作用较好。
7D"
100002.
2010.2 表七 不同组方罗哌卡因缓释制剂大鼠肌注感觉神经阻滞时间统计 (x ±s . n-6 分组 给药前 lh 2h 4h 8h 24h 32h 48h 56h 72h 罗哌卡因注射液组 8.98±1.(39 14.92±0.13« 14.77±0.44« 8,93士 1,67 8.13±1.11 9.Q3±1,31 9,42±2,33 9,02±1,91 8,82±1.61 9.27±0.97 罗哌卡因缓释制剂 1组 9.36il.31 ,87土 0,22** 14.48i0.57** 14.27+0.85** 14.58±0.54** 13.63il,15« 12,17土 1,70** 10.43i0.79* 9,53土 1,57 8,93土 1,49 罗派卡因缓释制剂 2组 930±103 14,83士 0,32** 14.72±0.43** 13.95±1.05« 14.45±1.05** 14.2±1.01« 12,38±1.48** 10.43±1.40* 9,25±1,60 10.73士 2,00 罗哌卡因缓释制剂 3组 9.28±1.66 14.7±0.43« 14,83士 0,29** 14,18士0,80« 14.12±0.99« 11.07±1,28* 8.83±1.11 9,1士2,13 8,97±2,28 9,25士2,07 罗呢卡因缓释制剂 4组 903±1,57 14,98±0,04** 14,68±0.38** 14,1±1.00« 11.18±1.00** 9, 62士 0,60 8.45±1.69 8.93±1.91 8,42±2,74 845±1,58 罗哌卡因缓释制剂 5组 8.97±1.23 14,95±0,08** 14,72士 0.43** 14,52土 0.86** 14.43±0.65« 12.42士 1,09 10,68士 1.65* 9.03士 1.66 9,23±1,33 8.52士 1,48 罗 卡因缓释制剂 6组 9.33±1.54 14,6士 1,36« 14.68±0.55^ :[4.62士0,5:1« 14,47±0.52** 12,67士 0.97 10,83士: H 9, 55士 1,30 9.93±1.27 9.33±1.42 罗哌卡因缓释制剂 7组 9.03±1.52 14,1±1,36** 13.13±:1.13« 12,5士1,08« 10,72士 1,76* 11,15士0,87* 8,97士 1, :11 8,62士1,48 8,47±1.65 8.52±1.56 罗哌卡因缓释制剂 8组 9,07士 1,60 14.87±0.21« 14.75±0.39** ί4,23± ,63** 14,37士 0.73** 13.57±1.27« 10.9士 1,34* 9.2士 1,50 9,52±2,24 9, 73士 1,79 注: 与对照组相比较, ** P <0.01, > ^ P <0.05 表八 不同组方罗哌卡因缓释制剂大鼠肌注运动神经阻滞时间统计 (Us n=6)
给药前' lh 2h 4h 8h 24h 32h 48h 56h 72h 罗哌卡因注射液组 1士 0,0 2.5±0.55** 1,83士 0,41« 1.17±0.41 1±0 1±0 1±0 1士 0 1±0 1±0 罗哌卡因缓释制剂 ί组 1士 0.0 2,33士 0,52« 2士 0,63 2士 0,63 L33士 0.82« 1,17士 0,41 1士 0 1士 0 1±0 1士 0 罗派卡因缓释制剂 2组 1±0.0 2士 0,63** 2±0,63** 1.67±0.52« 1.5±0.55** 1,33士 0,52* 1±0 1±0 1士 0 1士 0 罗哌卡因缓释制剂 3组 1士 Q,0 2.83±0.41« 2.83士 0.41** 2,33士 0.52** 2.17±0.41« 2.17±0.41** 1.33±0.52* 1,17士 0.41 1.17±0.41 1.17±0.41 罗哌卡因缓释制剂 4组 1士 0.0 2.33±0.52« 2±0.00** 2±0.(3ί * 1,33士 0,52* 1.33±0.52* 1±0 1士 0 ί±Ό 1±0 罗哌卡因缓释制剂 5组 1±0.0 2,5士055** 2.17±0,41** 2,17士041** 1,5±0.55* 1.17±0.41 1.17±0.41 1,17±0,41 1士0 1±0 罗哌卡因缓释制剂 6组 1±0.0 2,5士0,55** 2.33±0,52** 2,17士0,41** 2,17士0,41« 2±0« 1.33±0.52* 1±0 1±0 1士0 罗 卡因缓释制剂 7组 1士 0.0 2.5±0.55** 2.17士0,4:[** 2,17±0.41** 1.5士 0.84« 1,5士 0,84** 1.17±0.41 1.17±0,41 1,17±0,41 1士 Q 罗 卡因缓释制剂 8组 1±0.0 2士 0.63** 2.33±0,52** 1,83±0.75** 1.83±Q.75« 1.83±0.75« :1.17±0.41 1.17±0,4:1 1,17±0,41 1士0 注: 与对照组相比较, ** P <0.01, * P <0.05 (
100002
表九 不同组方罗哌卡因缓释制剂溶剂大鼠肌注感觉神经阻滞时间统计 (x ±s , 给药翁 lh 2h 4h 8h 24h 32h 48h 56h 72h 罗哌卡因注射液组 8.98士 1,09 14.92±0.13« 14.77±0.44« 8.93±1.67 8.13±1.11 9,03±1,31 9,42±2.33 9,02士 1.91 8.82±1,61 9.27±0,97 溶剂 1组 9.15土 1,03 12.9+1.28** 12,85土 0,85** 12.4±1.33** 10.8±0.32** 10.17+1.40 9.28土 12.23 8,68土 2, 18 9.05+1.26 8,7il.61 溶剂 2组 9.28土 0,97 12,62土 1,05** 12.1±1.39« 11, 68土 0,91* 11, 25土 0,92** 10.28+1.02 10.02土 2.01 9,02土 1,72 9.68土 1.60 9, 5土 1,99 溶剂 3组 8.97土 1.91 8.9±1.37 8,82±1,55 8,25±1.34 8, 87士 1,71 9, 5士 1,11 9±1.32 8.92士 1,53 9, 23 ±1,79 9,02±1,60 溶剂 4组 8.88土 1.51 8.93±1,62 8.08±1,24 9.5±1.24 9,15±1.68 8.47±1.62 8.93±2.28 8.7±1.76 9,22±2,36 9,22±1,80 溶剂 5组 9,3±1.78 13.15±1.66** 10.33±1.78 9,43士130 8.6±2.48 8,55±1.54 8.73±2.05 9.13±1,08 8,83±1,37 9.1±1,46 溶剂 6组 8,87士 1,68 9.7±1.46 8,42±1,38 8,55士105 8,68士172 8,78±1.49 9.07±1.85 9,2±1,41 8,68±1,41 9,03±1,58 溶剂 7组 8,92士 1,43 12.43±1.67** 11.07±0.72* 8,35士211 8,57士125 8.95±1.30 8.53±1.19 8.83±1,63 8,98±1,20 8,38±1,25 溶剂 8组 8, 72士 1,17 8.9±1,29 9,12±1,16 8,95士187 9,05士157 8.47±1.34 8.95±1.65 8.72±1,53 8,67±0,83 9±1.34 注: 与对照组相比较, ** P <0.01, * P <0.05 表十 不同组方罗哌卡因缓释制剂溶剂大鼠肌注运动神经阻滞时间统计 ( is , n - 6)
给药前 lh 2h 4h 8h 24h 32h 48h 56h 72h 罗哌卡因注射液组 1±0 2.5±0.55« ί.83±0.41** 1.17±0.41 1土 0 1±0 1士 0 1土 0 1±0 1士 0 溶剂 i组 1±0 2土 0,89** 1,67土 0,52« L 67土 0,52** HO 1土 0 HO HO 1土 0 HO 溶剂 2组 1+0 2.17±Q.75« 1.17±0.41 1.17±0.41 HO 1±0 1±0 1±0 1士 0 1±0 溶齐 U 3組. 1±0 2.33±0,52材 1,5士0,55* 1±0 2,33士0,52« 1±0 1士 0 1±0 1±0 1士 0 溶剂 4组 1+0 2.17士 0,4: [ 1.67士 0.52* 1±0 1士0 1+0 1+0 1+0 1±0 1+0 溶剂 5组 1士 Q 2.17士 0,4: [ 1.33士 0.52* 1.±0 1士 0 1士0 1士 0 1士 0 1±0 1士 Q 溶剂 6组 1+0 1,67土 0.52* 1,33土 0,52* 1±0 1士 0 1±0 1±0 1±0 1±0 1±0 溶剂 7组 1±0 2,33士 0,52« 183±(3,41« 1,67士082** 1±0 1士0 1±0 1±0 1±0 1±0 溶剂 8组 1+0 L83士 0,75« 1.17±0.41 1.ί7±0.41 1士 0 1+0 1+0 1+0 1±0 1+0 注: 与对照组相比较, ** P <0.01. * P <0, 05, =
100002
表十一 不同组方罗哌卡因缓释飼剂大鼠肌注 (术后痛模型) 感觉神经阻滞时间统计 ( ϊ ±η.:6 时间 lh 2h 4h 8h 24h 28h 32h 48h 56h 72h 模型组 8.18+2.44 7.8±2.79 9,73±2,92 7.43±:1.15 10.83±3.41 13, 13±2.67 12.32士 2, 56 13.87±3.32 14,68±2,99 19,55±3. 甲磺酸罗派卡因注射液 1组 8.02±2.45 61.25±5.28** 50,47±3,90** 10.2±1.99** 1:1.4±3.32 :12,25±4,58 14,23士 3, 74 15,48士3,04 16,03士3,14 18.22±4. 罗哌卡因缓释制剂 2组 8,35±2,36 59.3±6.75** 44.51±6.05^ 53.32±6.42« 45.05±3.93« 39.72±3.41« 20.58±3.5Q« 17.65±7.34* 16,57±4,05 18,92±7. 溶剂 2组 8.83±2,34 16.2±10.50** 9,8士 1,92 10.63±3.25* 11.77±2.54 12,57±5, 17 14.8±3.86 14,13士4, 15 15,03士 2.51 16.57±5. 罗哌卡因缓释制剂 3组 8.55±2.37 53.17± 13.13« :47,58±7,44** 47.17±5.16** 41.67± 10.18** 38.82士 6.54** 23,88±8,01** 22.421:8.56* 16.53±4.92 18,5±4, 溶剂 3组 8,87±3,63 20, 65士 12,83*. 11.45±4.68 10 75±2,83* 1ί.95±5.21 10,1士 5, 52 13.82±5.33 13.03±3.05 15.42士 6, 13 17,63±4, 罗哌卡因缓释制剂 4组 8.58±2.28 59.3±7.21** 52,8士 7,99« 44,93士12,88« ' 41,92±6.33** 34.72±8,87** 24,43±8,43** 19.52±5.29* 19,47士 6,82* 18.53±6. 溶剂 4组 8,37± 1,85 14.33±7.34* 12.05±7.15 9.57±4.91 11.25±5.22 11.07±5.71 12.13±5.36 15,4士5 66 16.03±4,47 15,72±4, 罗哌^因缓释制剂 5组 7.80士1.07 61,43*6.72** 58,45士 4,67« 59.88士 5.49« 36,40士 9.81« 31.42士 3,74* 25,30*5,81^ 22, 17士 2,93* 20.77士 6,35 23,73±4. 溶剂 5组 8,60士 1, 50 17,93士 3, 93 13.20±5.57 10,38士 4,15 14.87士 3.08 12.68士 2,53 12.80±3.19 14.8士 3, 37 17,42士 4, 86 16,45士 5. 注- 与对照组相比较, ** P <0. 01 , * P <0. 05 ,:
100002
具体实施方式
实施例 1
制剂配方: 罗喊卡因游离碱 10 mg
苯甲醇 0.1 ml
油酸乙酯 (或大豆油等植物油) 加至
制备工艺: 取处方量的苯甲醇, 投入 10 mg罗哌卡因游离碱, 涡旋, 使其充分溶解, 得 到药物溶液; 再将油酸乙酯 或大豆油等植物油) 缓慢加到药物溶液中至 10 ml, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶, 密封, 灯检合格后, 包装。
实施例 2
制剂配方: 罗喊卡因游离碱 】600 mg
苯甲醇 7.5 ml
油酸乙酯 (或大豆油等植物油) 加至 2.5 mi
制备工艺: 取处方量的苯甲醇, 分批缓慢投入 1600 mg罗哌卡因游离碱, 涡旋, 使其充 分溶解, 得到药物溶液; 再将油酸乙酯 (或大豆油等植物油) 缓慢加到药物溶液中至 10 mi, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 3
制剂配方; 罗哌卡因游离碱 10 mg
乙醇 0.1 ml
油酸乙酯 (或蓖麻油) 加至 10 ml
制备工艺: 取处方量的乙醇, 缓慢投入 10 mg罗哌卡因游离碱 涡旋, 使其充分溶解, 得到药物溶液; 再将油酸乙酯 (或蓖麻油) 缓慢加到药物溶液中至 10 ml, 涡旋混匀, 膜过 滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 4
制剂配方: 罗哌卡因游离碱 750 mg
乙醇 5 ml
油酸乙酯 (或蓖麻油) 加至 10 ml
制备工艺: 取处方量的乙醇, 分批缓慢投入 750 mg罗哌卡因游离碱, 涡旋, 使其充分溶 解, 得到药物溶液; 再将油酸乙酯 (或蓖麻油)缓慢加到药物溶液中至 10 ml, 涡旋混匀, 膜 过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 5
制剂配方: 罗呃卡因游离碱 10 mg
_ - 苯甲酸苄酯 0.1 mi
油酸乙酯 (或大豆油等植物油) 加至 10 ml
制备工艺: 取处方量的苯甲酸苄酯, 投入: i O mg罗哌卡因游离碱, 涡旋, 使其充分溶解, 得到药物溶液; 再将油酸乙酯(或大豆油等植物油)缓慢加到药物溶液中至 10 mi ,涡旋混匀, 膜过滤除杂, 除 if , 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 6
制剂配方: 罗哌卡因游离碱 500 mg
苯甲酸苄酯 7 ml
油酸乙酯 (或大豆油等植物油) 加至 O mi
制备工艺: 取处方量的苯甲酸苄酯, 缓慢投入 500 mg罗哌卡因游离碱, 涡旋, 使其充分 溶解, 得到药物溶液: 再将油酸乙酯(或大豆油等植物油)缓慢加到药物溶液中至 10 mi, 涡 旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 7
制剂配方: 罗呃卡因游离碱 50 mg
苯甲醇 0,1 ml
油酸乙酯 (或大豆油等植物油) 加至 10 ml
制备工艺; 取处方量的苯甲醇和少量油酸乙酯(或大豆油等植物油), 投入 50 mg罗哌卡 因游离碱, 涡旋, 使其充分溶解, 得到药物溶液; 再将油酸乙酯 (或大豆油等植物油) 缓慢 加到药物溶液中至 10 nil, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格 后, 包装。
实施例 8
制剂配方: 罗哌卡因游离碱 1000 mg
苯甲醇 4 mi
油酸乙酯 (或大豆油等植物油) 加至 10 ml
制备工艺: 取处方量的苯甲醇, 缓慢投入 1000 mg罗哌卡因游离碱, 涡旋, 使其充分溶 解, 得到药物溶液; 再将油酸乙酯(或大豆油等植物油)缓慢加到药物溶液中至 10 ml, 涡旋 混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 9
制剂配方: 罗哌卡因游离碱 50 mg
乙酉 0,1 ml
油酸乙酯 (或蓖麻油) 加至 10 ml
- - 制备工艺: 取处方量的乙醇与少量油酸乙酯 (或蓖麻油 λ 投入 50mg罗哌卡因游离碱, 涡旋, 使其充分溶解, 得到药物溶液; 再将油酸乙酯 (或蓖麻油) 缓慢加到药物溶液中至 10 ml, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 10
制剂配方: 罗哌卡因游离碱 600 mg
乙醇 4 mi
油酸乙酯 (或蓖麻油) 加至 10 ml
制备工艺: 取处方量的乙醇, 缓慢投入 600 mg罗哌卡因游离碱, 涡旋, 使其充分溶解, 得到药物溶液; 再将油酸乙酯(或蓖麻油)缓慢加到药物溶液中至 10 mi, 涡旋混匀, 膜过滤 除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 11
制剂配方: 罗哌卡因游离碱 300 mg
苯甲醇 1 ml
油酸乙酯加至 10 ml
制备工艺: 取处方量的苯甲醇, 缓慢投入 300 mg罗喊卡因游离碱, 轻微加热并涡旋, 使 其充分溶解, 得到药物溶液; 再将油酸乙酯缓慢加到药物溶液中至 0 ml , 涡旋混匀, 膜过滤 除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 12
制剂配方: 罗呢卡因游离碱 250 mg
乙醇 i ml
油酸乙酯加至 】0 mi
制备工艺: 取处方量的乙醇, 缓慢投入 250 mg罗哌卡因游离碱, 轻微加热并涡旋, 使其 充分溶解, 得到药物溶液; 再将油酸乙酯缓慢加到药物溶液中至 i0 mi, 涡旋混匀, 膜过滤除 杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施倒 13
制剂配方: 罗喊卡因游离碱 450 mg
乙醇 0,8 ml
苯甲醇 0.8 ml
油酸乙酯加至 10 mi
制备工艺: 取处方量的苯甲醇、 乙醇, 缓慢投入 450 nig罗哌卡因游离碱, 轻微加热并涡 旋, 使其充分溶解, 得到药物溶液; 再将油酸乙酯缓慢加到药物溶液中至 10 ml, 涡旋混匀,
- - 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 14
制剂配方: 罗喊卡因游离碱 350 mg
苯甲醇 〗 ml
蓖麻油加至 10 ml
制备工艺: 取处方量的苯甲醇, 缓慢投入 350 mg罗哌卡因游离碱 轻微加热并涡旋, 使 其充分溶解, 得到药物溶液; 再将蓖麻油缓慢加到药物溶液中至 10 ml 涡旋混匀, 膜过滤除 杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 15
制剂配方: 罗喊卡因游离碱 300 mg
苯甲醇 I mi
大豆油加至 10 mi
制备工艺: 取处方量的苯甲醇, 缓慢投入 300 mg罗哌卡因游离碱
其充分溶解, 得到药物溶液; 再将大豆油缓慢加到药物溶液中至 10 ml 呙旋混匀, 膜过滤除 杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 16
制剂配方; 罗哌卡因游离碱 250 mg
乙醇 1 ml
蓖麻油加至 10 ml
制备工艺: 取处方量的乙醇, 缓慢投入 250 mg罗哌卡因游离碱, 轻微加热并涡旋, 使其 充分溶解,得到药物溶液; 再将蓖麻油缓慢加到药物溶液中至 10 mi ,涡旋混匀,膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 17
制剂配方: 罗哌卡因游离碱 300 mg
苯甲醇 i ml
油酸乙酯 3 ml
大豆油加至 】0 mi
制备工艺; 取处方量的苯甲醇、 油酸乙酯, 缓慢投入 300 mg罗哌卡因游离碱, 轻微加热 并涡旋,使其充分溶解,得到药物溶液; 再将大豆油缓慢加到药物溶液中至 10 ml,涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施倒 18
- - 制剂配方: 罗哌卡因游离碱 300 nig
苯甲醇 1 ml
苯甲酸苄酯 3 ml
大豆油加至 】 0 ml
制备工艺: 取处方量的苯甲醇、 苯甲酸苄離 投入 300 mg罗哌卡因游离碱, 轻 涡旋, 使其充分溶解, 得到药物溶液; 再将大 ί|缓慢加到药物溶液中至 10 ml, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施倒 19
制剂配方: 罗喊卡因游离碱 250 mg
乙醇 】 ml
油酸乙酯 3 mi
大豆油加至 10 mi
制备工艺: 取处方量的乙醇、 油酸乙酯, 投入 250 mg罗哌卡因游离碱, 涡旋, 使其充分 溶解, 得到药物溶液; 再将大豆油缓慢加到药物溶液中至 10 mi, 涡旋混匀, 膜过滤除杂, 除 菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 20
制剂配方; 罗哌卡因游离碱 300 mg
乙醇 1 ml
苯甲酸苄酯 3 ml
大豆油加至 10 ml
制备工艺: 取处方量的乙醇、 苯曱酸苄酯, 缓慢投入 300 mg罗哌卡因游离碱, 轻微加热 并涡旋,使其充分溶解,得到药物溶液; 再将大豆油缓慢加到药物溶液中至 0 mi,涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 21
制剂配方: 罗呃卡因游离碱 450 mg
苯甲醇 : i ml
苯甲酸苄酯 〗.5 mi
蓖麻油加至 10 mi
制备工艺: 取处方量的苯甲醇、 苯甲酸苄酯, 缓慢投入 450 mg罗哌卡因游离碱, 轻徵加 热并涡旋, 使其充分溶解, 得到药物溶液: 再将蓖麻油缓慢加到药物溶液中至 10 ml , 涡旋混 匀, 膜过滤除杂, 滤除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
- - 实施例 22
制剂配方: 罗呢卡因游离碱 300 mg
乙醇 1 ml
油酸乙酯 3 ml
蓖麻油加至 10 ml
制备工艺: 取处方量的乙醇、 油酸乙酯, 缓慢投入 300 mg罗哌卡因游离碱, 轻徵加热并 涡旋, 使其充分溶解, 得到药物溶液; 再将蓖麻油缓慢加到药物溶液中至 10 ml, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 23
制剂配方: 罗喊卡因游离碱 400 mg
乙醇 I mi
苯甲酸苄酯 1.5 md
蓖麻油加至 10 ml
制备工艺: 取处方量的乙醇、 苯 ^酸苄酯, 投入 400 mg罗哌卡因游离碱, 轻微加热并涡 旋, 使其充分溶解, 得到药物溶液; 再将蓖麻油缓慢加到药物溶液中至 i0 mi, 涡旋混匀, 膜 过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 24
制剂配方: 罗哌卡因游离碱 500 mg
乙酉 1 ml
苯甲酸苄酯 3 ml
蓖麻油加至 】0 mi
制备工艺: 取处方量的乙醇、 苯甲酸苄酯, 投入 500 mg罗哌卡因游离碱, 轻微加热并涡 旋, 使其充分溶解, 得到药物溶液; 再将蓖麻油缓慢加到药物溶液中至 10 ml, 涡旋混匀, 膜 过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 25
制剂配方: 甲磺酸罗哌卡因 120 mg
乙醇 】,8 ml
油酸乙酯 10 mi
制备工艺: 取处方量的乙醇, 投入 20 mg甲磺酸罗哌卡因, 涡旋, 使其充分溶解, 得到 药物溶液; 再将油酸乙酯缓慢加到药物溶液中至 10 ml, 涡旋混勾, 膜过滤除杂, 除 if, 分装 至西林瓶中, 密封, 灯检合格后, 包装。
- - 实施例 26
制剂配方: 甲磺酸罗哌卡因 120 mg
苯甲醇 1 ,6 mi
油酸乙酯 (或大豆油等植物油) 加至 】0 mi
制备工艺: 取处方量的苯甲醇, 投入 120 mg甲磺酸罗哌卡因, 涡旋, 使其充分溶解, 得 到药物溶液; 再将油酸乙酯 (或大豆油等植物油) 缓慢加到药物溶液中至 10 ml, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 27
制剂配方: 甲磺酸罗哌卡因 120 mg
苯甲醇 0.8 mi
乙醇 0.8 ml
油酸乙酯 (或大豆油等植物油) 加至 10 mi
制备工艺: 取处方量的苯甲醇、 乙醇, 缓慢投入 120 mg甲磺酸罗哌卡因, 涡旋, 使其充 分溶解, 得到药物溶液; 再将油酸乙酯 (或大豆油等植物油) 缓慢加到药物溶液中至 10 mi, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 28
制剂配方; 罗哌卡因游离碱 450 mg
乳酸乙酯 5 ml
油酸乙酯加至 10 ml
制备工艺: 取处方量的乳酸乙酯, 投入 450 mg 罗哌卡因游离碱, 轻徵加热并涡旋, 使 其充分溶解, 得到药物溶液; 再将油酸乙酯缓慢加到药物溶液中至 10 m! , 涡旋混匀, 膜过滤 除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 29
制剂配方: 罗哌卡因游离碱 400 mg
乳酸乙酯 5 ml
三乙酸曾油酯加至 O mi
制备工艺: 取处方量的乳酸乙酯, 投入 400 mg 罗哌卡因游离碱, 涡旋, 使其充分溶解, 得到药物溶液; 再将三乙酸甘油酯缓慢加到药物溶液中至 10 mi, 涡旋混匀, 膜过滤除杂, 除 菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 30
制剂配方: 罗呃卡因游离碱 350 mg
- - 乙醇 0.6 ml
苯甲醇 0.8 ml
油酸乙酯 4 ml
大豆油加至 10 ml
制备工艺: 取处方量的乙醇和苯甲醇, 缓慢投入 350 mg罗哌卡因游离碱, 轻微加热并涡 旋, 使其充分溶解, 得到药物溶液; 将油酸乙酯 4ml缓慢加到药物溶液中, 搅拌混匀, 再将 大豆油缓慢添加到至】0 mi, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合 格后, 包装。
实施例 31
制剂配方: 罗喊卡因游离碱 250 mg
乙醇 I mi
蓖麻油 (含氢化蓖麻油 15% ( W7Y) 加至 10 ml
制备工艺: 取处方量的乙醇, 缓慢投入 250 mg罗哌卡因游离碱, 轻微加热并涡旋, 使其 充分溶解, 得到药物溶液; 将蓖庥油 (含氢化蓖麻油 15% (W/V)缓慢添加到至 10 ml, 涡旋 混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 32
制剂配方; 罗哌卡因游离碱 300 mg
苯甲醇 I mi
蓖麻油 (含氢化蓖麻油 15% (W7V) 加至 10 ml
制备工艺: 取处方量的苯甲醇, 缓慢投入 300 mg罗哌卡因游离碱, 轻微加热并涡旋, 使 其充分溶解, 得到药物溶液; 将蓖麻油 (含氢化蓖麻油 15% ( W/V)缓慢添加到至 10 mi , 涡 旋混勾, 膜过滤除杂, 除 if , 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 33
制剂配方: 罗哌卡因游离碱 300 mg
苯甲醇 I mi
大豆油 (含白油 15% (W/V) 加至 10 ml
制备工艺: 取处方量的苯甲醇, 缓慢投入 300 mg罗喊卡因游离碱, 轻微加热并涡旋, 使 其充分溶解, 得到药物溶液; 将大豆油(含白油 15% (W/V)缓慢添加到至 10 ml, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 34
制剂配方: 罗呃卡因游离碱 350 mg
- - 地佐辛 350 mg
苯甲醇 I mi
苯甲酸苄酯 1.5 m
大豆油加至 10 ml
制备工艺: 取处方量的苯甲醇、 苯甲酸苄酯, 缓慢投入 350 mg罗哌卡因游离碱、 350mg 地佐辛, 轻徵加热并涡旋, 使其充分溶解, 得到药物溶液; 将大豆油缓慢添加到至 10 ml, 涡 旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 35
制剂配方: 罗喊卡因游离碱 300 mg
地佐辛 350 mg
无水乙醇 1 ml
苯甲酸苄酯 i .5 ml
大豆油加至 10 mi
制备工艺:取处方量的无水乙醇、苯 ¥酸苄酯,缓慢投入 300 mg罗哌卡因游离碱、 350mg 地佐辛, 轻徵加热并涡旋, 使其充分溶解, 得到药物溶液; 将大豆油缓慢添加到至 10 mi, 涡 旋混勾, 膜过滤除杂, 除 if , 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 36
制剂配方: 罗哌卡因游离碱 450 mg
地佐辛 400 mg
苯甲醇 I mi
苯甲酸苄酯 1.5 m!
蓖麻油加至 10 ml
制备工艺: 取处方量的苯甲醇、 苯甲酸苄酯, 缓慢投入 450 mg罗哌卡因游离碱、 400mg 地佐辛, 轻徵加热并涡旋, 使其充分溶解, 得到药物溶液; 将蓖麻油缓慢添加到至 10 ml, 涡 旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 37
制剂配方: 罗喊卡因游离碱 300 mg
地佐辛 350 mg
苯甲醇 i rd
油酸乙酯 3 mi
大豆油加至 10 ml
- - 制备工艺: 取处方量的苯甲醇, 缓慢投入 300 mg罗哌卡因游离碱、 350mg地佐辛, 轻微 加热并涡旋, 使其充分溶解, 得到药物溶液: 加入处方量的油酸乙酯, 搅拌混勾, 再将大豆 油缓慢添加到至 10 mi, 搅拌混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 38
制剂配方: 罗哌卡因游离碱 350 mg
帕瑞昔布 350 mg
苯甲醇 1 ml
苯甲酸苄酯 L5 ml
大豆油加至
制备工艺; 取处方量的苯甲醇、 苯甲酸苄酯, 缓慢投入 350 mg罗哌卡因游离碱、 350nig 帕瑞昔布, 轻 ¾ ϋΐΠ热并涡旋, 使其充分溶解, 得到药物溶液; 将大豆油缓慢添加到至 10 ml, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施倒 39
制剂配方: 罗喊卡因游离碱 300 mg
帕瑞昔布 250 nig
苯甲醇 1 ml
大豆油加至 10 m!
制备工艺: 取处方量的苯甲醇, 缓慢投入 300 mg罗哌卡因游离碱、 250nig帕瑞昔布, 轻 微加热并涡旋, 使其充分溶解, 得到药物溶液; 将大豆油缓慢添加到至 10 mi, 涡旋混匀, 膜 过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 40
制剂配方: 罗哌卡因游离碱 450 mg
中白 !¾昔布 450 mg
苯甲醇 0,8 ml
无水乙醇 0,8 md
油酸乙酯加至 10 ml
制备工艺: 取处方量的苯甲醇、 无水乙醇, 缓慢投入 450 mg 罗哌卡因游离碱、 450mg 帕瑞昔布,轻微加热并涡旋,使其充分溶解,得到药物溶液;将油酸乙酯缓慢添加到至 10 mi, 涡旋混匀, 膜过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施倒 41
- - 制剂配方: 罗哌卡因游离碱 400 mg
帕瑞昔布 350 mg
苯甲醇 1.0 ml
蓖麻油加至
制备工艺: 取处方量的苯甲醇, 缓慢投入 400 mg罗哌卡因游离碱、 350mg帕瑞昔布, 轻 微加热并涡旋, 使其充分溶解, 得到药物溶液; 将蓖麻油缓慢添加到至 10 ml, 涡旋混匀, 膜 过滤除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施倒 42
制剂配方: 普鲁卡因游离碱 150 mg
苯甲醇 1.0 m!
苯甲酸苄酯 3.0 ml
蓖麻油加至 10 m
制备工艺: 取处方量的苯甲醇、 苯甲酸苄酯, 缓慢投入】 5() mg普鲁卡因游离碱, 涡旋, 使其充分溶解, 得到药物溶液; 将蓖庥油缓慢添加到至 10 ml, 涡旋混匀,膜过滤除杂, 除窗, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 43
制剂配方; 地布卡因游离碱 150 mg
苯甲醇 U) ml
苯甲酸苄酯 3,0 ml
蓖麻油加至 10 ml
制备工艺: 取处方量的苯甲醇、 苯甲酸苄酯, 缓慢投入 150 mg地布卡因游离碱, 轻徵加 热并涡旋, 使其充分溶解, 得到药物溶液; 将蓖麻油缓慢添加到至 10 ml, 涡旋混匀, 膜过滤 除杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
实施例 44
制剂配方: 阿替卡因游离碱 180 mg
乙醇 1.0 ml
苯甲酸苄酯 3.0 m!
大. a油加全 10 nil
制备工艺: 取处方量的乙醇、 苯甲酸苄酯, 缓慢投入 180 mg阿替卡因游离碱, 轻微加热 并涡旋, 使其充分溶解, 得到药物溶液: 将大豆油缓慢添加到至 0 mi, 涡旋混匀, 膜过滤除 杂, 除菌, 分装至西林瓶中, 密封, 灯检合格后, 包装。
- -

Claims

1、 一类无成瘾性麻醉镇痛缓释递药系统, 主要由镇痛剂、 药物溶媒、 药物缓释剂组 成, 其特征为, 缓释递药系统为油性组合物并具有良好的均一性。
2、 根据权利要求〗所述的递药系统, 所述麻醉镇痛剂指局部麻醉药, 也包括非甾 体类抗炎止痛药、 阿片类镇痛药 (不引起成瘾性的中、 低剂量), 局部麻醉药包括: 普 鲁卡因、 利多卡因、 布比卡因、 左布比卡因、 罗哌卡因、 丁卡因、 地布卡因、 依替卡因的 游离碱, 也包含其盐类, 有: 甲磺酸盐、 盐酸盐、 掏橼酸盐、 硫酸盐、 乳酸盐、 琥珀 酸盐、 富马酸盐、 谷氨酸盐、 乙基磺酸盐、 苯磺酸盐、 柠檬酸盐、 水杨酸盐、 马来 酸盐; 非留体抗炎药物包括: 阿司匹林、 双氯芬酸钠、 布洛芬、 萘普生、 萘普酮、 舒林 酸、 甲灭酸、 氯灭酸、 双氯灭酸、 氟灭酸、 吡罗昔康、 美洛昔康、 氨基比林、 安乃近、 非 那西丁、 扑热息痛、 帕瑞昔布、 罗非昔布、 瓦德昔布、 尼美舒利; 阿片类镇痛药包括: 二 氢吗啡酮、 地佐辛、 纳洛酮、 纳曲酮、 吗啡、 芬太尼、 舒芬太尼、 可待因、 派替丁、 喷他 佐辛、 美沙酮、 埃托啡、 布桂嗪、 丁丙诺啡、 曲马多、 阿芬太尼、 瑞芬太尼。
3、 根据权利要求 2所述的麻醉镇痛剂, 可以是局部麻醉药中的一种、 两种或两种 以上的组合物; 或者局部麻醉药与非 体类抗炎止痛药、 阿片类镇痛药 (不引起成瘾性 的中、 低剂量) 中的一种、 两种或两种以上的组合物。
4、 根据权利要求 2所述的麻醉镇痛剂, 优选为局部麻醉药中的罗哌卡因游离碱及 其盐类, 镇痛剂可以是它们中的一种、 两种或两种以上的组合物; 最优选罗哌卡因游离 减。
5、 根据权利要求〗所述的递药系统, 所述药物溶媒指可溶解麻醉镇痛药、 或麻醉镇 痛药与阿片 '类镇痛药 (不引起成瘾性的低、 中剂量)、 非甾体类抗炎止痛药的混合物的天 然或者人工合成的有机溶剂, 药物溶媒包括: 苯甲醇、 乙醇、 单乙酸甘油酯、 乳酸乙酯, 四氢呋喃聚乙二醇醚、 苯甲酸苄酯之一、 二者及两者以上的混合物; 药物溶媒优选为: 乙 醇、 苯甲醇、 苯甲酸苄酯、 乳酸乙酯、 四氢呋喃聚乙二醇醚之一、 二者及两者以上的混合 m。
6、 根据权利要求〗所述的递药系统, 所述药物缓释剂包括: 大豆油、 芝麻油、 葵花 籽油、 花生油、 玉米油、 菜子油、 橄榄油、 棉籽油、 蓖麻油等其它天然植物油或者天然植 物油经人工改进的半天然油脂、 油脂纯化物及相应衍生物; 药物缓释剂也可选自人工合 成油脂, 包括: 中链 (碳链长度为 C6- (::12 ) 甘油三酸酯、 长链 (碳链长度为 CM- C24 ) 甘
1 油:三酸酯、 油酸乙酯、 :三乙酸 油酯及其相应衍生物、 白油、 二甲基硅油, 也可以是低熔 点动物脂肪油脂: 药物缓释制剂还可以是: 天然植物油、 人工改进的半天然植物脂、 油脂 纯化物、 人工合成油脂以及低熔点动物脂肪油脂之一、 两种或者两种以上的混合物。
7、 根据权利要求 6所述的药物缓释剂, 可优选为: 大豆油、 油酸乙酯、 蓖麻油、 芝 麻油、 花生油之一、 二者及两者以上的混合物, 最优选大豆油、 油酸乙酯、 蓖麻油之一、 二者及两者以上的混合物。
8、根据权利要求 1所述的递药系统,其特征在于:麻醉镇痛剂浓度〗- 160 mg/mKw v), 药物溶媒比例为 i%- 75% ( v), 药物缓释剂比例为 25%- 99% ( v'/v); 递药系统优选为麻 醉镇痛剂浓度 i-90 mg/ml (w/v) , 药物溶媒比例为 1%- 50% (v/v) , 药物缓释剂比例为 50%-99% ( v/v); 最优选的递药系统为: 麻醉镇痛剂浓度为】2-50 mg/ml (w/v), 药物溶 媒比倒为 10%- 40% ( v/v) , 药物缓释剂比例为 60%- 90% (v/v;)。
9、 权利要求: I所述的递药系统, 其给药形式包括: 注射剂、 喷雾剂、 气雾剂、 软膏 剂、 霜剂、 涂膜剂、 膏剂: 优选注射剂、 喷雾剂、 涂膜剂、 气雾剂; 最优选为注射剂。
10、 权利要求 1所述的递药系统的制备方法, 包括以下歩骤:
A 原液制备: 将精密称取一定量的麻醉镇痛剂中的一种、 两种或两种以上的混合物 溶解于一定体积的药物溶媒中, 超声或涡旋至药物完全溶解, 然后添加处方量的一种、两 种及两种以上缓释剂, 超声或涡旋混匀制备出所需缓释递药系统原液;
B 无菌分装: 在无菌条件下, 将制备好的药液过膜除去杂质、 除菌, 然后分装在西 林瓶或安瓿、 可填充式注射器、 喷雾瓶、 气雾瓶 (若是气雾瓶, 则需要先添加药物溶液, 然后充入抛射剂, 最后封盖) 等容器中, 压塞, 压盖, 可得用于镇痛的缓释递药系统。
11、 权利要求 1所述的递药系统在制备具有麻醉镇痛作用药物中的应用。
12、 权利要求 1所述的递药系统在治疗术后伤口疼痛方面的用途、 包括割伤、 擦伤、 刺伤等机械损伤造成的伤口疼痛方面的应用; 烫伤、 烧伤、 枪弹、 爆炸、 火药、 化学引起 的战争创伤造成的伤口疼痛方面的应用; 带状泡症、 神经痛、 关节痛、 肌肉痛、 内外痔疾 病引起的身体局部炎症性损伤部位疼痛方面的应用;还-可以是癌症引发的身体局部疼痛方 面的应] ¾。
PCT/CN2013/074010 2013-01-22 2013-04-10 无成瘾性镇痛缓释递药系统及其制备方法 WO2014114032A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020157022974A KR101716793B1 (ko) 2013-01-22 2013-04-10 무중독성 진통 서방형 약물전달시스템 및 이의 제조방법
US14/762,573 US11364299B2 (en) 2013-01-22 2013-04-10 Non-addictive analgesic sustained-release drug delivery system and preparation method thereof
EP13872302.8A EP2949316B1 (en) 2013-01-22 2013-04-10 Non-addictive analgesic sustained-release drug delivery system and preparation method thereof
JP2015554013A JP6205676B2 (ja) 2013-01-22 2013-04-10 非依存性の鎮痛徐放性ドラッグデリバリーシステム及びその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310022657.3 2013-01-22
CN201310022657.3A CN103142458B (zh) 2013-01-22 2013-01-22 无成瘾性镇痛缓释递药系统的组方与制备方法

Publications (1)

Publication Number Publication Date
WO2014114032A1 true WO2014114032A1 (zh) 2014-07-31

Family

ID=48540977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/074010 WO2014114032A1 (zh) 2013-01-22 2013-04-10 无成瘾性镇痛缓释递药系统及其制备方法

Country Status (6)

Country Link
US (1) US11364299B2 (zh)
EP (1) EP2949316B1 (zh)
JP (1) JP6205676B2 (zh)
KR (1) KR101716793B1 (zh)
CN (1) CN103142458B (zh)
WO (1) WO2014114032A1 (zh)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8852638B2 (en) 2005-09-30 2014-10-07 Durect Corporation Sustained release small molecule drug formulation
BRPI0811319A2 (pt) 2007-05-25 2015-02-10 Tolmar Therapeutics Inc Composição fluida, método de formação de uma composição fluida, implante biodegrádavel formado in situ, método de formação de um implante biodegradável in situ, kit, implante e método de trataento
GB2513060B (en) 2010-06-08 2015-01-07 Rb Pharmaceuticals Ltd Microparticle buprenorphine suspension
US9272044B2 (en) 2010-06-08 2016-03-01 Indivior Uk Limited Injectable flowable composition buprenorphine
CN113388606A (zh) 2011-09-26 2021-09-14 凯杰有限公司 用于分离细胞外核酸的快速方法
EP2877155B1 (en) 2012-07-26 2020-10-28 Camurus AB Opioid formulations
GB201404139D0 (en) 2014-03-10 2014-04-23 Rb Pharmaceuticals Ltd Sustained release buprenorphine solution formulations
CN103933040A (zh) * 2014-03-25 2014-07-23 王寿世 一种加强型神经阻滞药物组合物
CN103933041B (zh) * 2014-04-21 2016-03-16 青岛市中心医院 一种包含布比卡因的局部麻醉组合物及其应用
GB201419091D0 (en) * 2014-10-27 2014-12-10 Camurus Ab Formulations
CA2987378C (en) * 2015-05-28 2023-08-01 Lumosa Therapeutics Co., Ltd. Pharmaceutical formulations for sustained release of sebacoyl dinalbuphine ester
WO2016198571A1 (en) 2015-06-10 2016-12-15 Qiagen Gmbh Method for isolating extracellular nucleic acids using anion exchange particles
CN105030775A (zh) * 2015-07-13 2015-11-11 广州金中健医疗器材有限公司 一种无成瘾性局部麻醉镇痛缓释递药系统及其制备方法
WO2017036408A1 (zh) * 2015-09-01 2017-03-09 四川海思科制药有限公司 S-(-)-1-丙基-2',6'-二甲苯胺甲酰基哌啶晶体及其缓释制剂
CN108659100A (zh) * 2017-03-28 2018-10-16 上海新生源医药集团有限公司 具有镇痛作用的多肽及其应用
JP6850371B2 (ja) * 2017-07-04 2021-03-31 シャンドン ダンホン ファーマスーティカル カンパニー リミテッドShandong Danhong Pharmaceutical Co., Ltd. デゾシン類似体エステルを含む徐放懸濁液およびその製造方法
CA3073734A1 (en) * 2017-08-28 2019-03-07 Tlc Biopharmaceuticals, Inc. Sustained-release anesthetic compositions and methods of preparation thereof
AU2018358372A1 (en) * 2017-10-30 2020-05-28 Kaken Pharmaceutical Co., Ltd. External preparation for treating trichophytosis unguium
EP3720420A1 (en) * 2017-12-06 2020-10-14 Huzhou Hui Zhong Ji Shi Biotechnology Co., Ltd. Injectable long-acting local anesthetic semi-solid gel formulations
CN109896992A (zh) * 2017-12-08 2019-06-18 武汉软件工程职业学院 制备离子液体的方法及其应用
KR20200136990A (ko) * 2018-03-30 2020-12-08 티엘씨 바이오파머슈티컬즈 인코포레이티드 서방형 마취제 조성물 및 이의 제조 방법
CN108379269B (zh) * 2018-04-20 2020-08-21 武汉百纳礼康生物制药有限公司 一种用于术后镇痛的缓释制剂及其制备方法
CN108743952B (zh) * 2018-06-11 2021-08-31 西安力邦医药科技有限责任公司 局部麻醉药的磷脂-混溶剂-油缓释递药系统组方与制备方法
CN110935024B (zh) * 2018-09-21 2023-08-08 合肥合源药业有限公司 长效组合物
CN109316602A (zh) * 2018-11-13 2019-02-12 西安力邦医药科技有限责任公司 一种长效镇痛并促进伤口愈合的复方缓释递药系统的组方与应用
CN111388418B (zh) * 2018-12-31 2022-09-06 北京泰德制药股份有限公司 一种含有罗哌卡因或其药用盐的药物组合物
CN111840553A (zh) * 2019-04-15 2020-10-30 湖州依诺唯新药物制剂有限公司 脂性药物制剂及其应用
CN110327336B (zh) * 2019-07-09 2022-07-26 成都大学 昔萘酸甲哌卡因及其长效缓释制剂
WO2021141959A1 (en) * 2020-01-10 2021-07-15 Pacira Pharmaceuticals, Inc. Treatment of pain by administration of sustained-release liposomal anesthetic compositions
CN113117092A (zh) * 2020-01-14 2021-07-16 中国科学院上海药物研究所 一种非水缓释递药系统
EP4091612A4 (en) 2020-01-14 2024-01-24 Shanghai Inst Materia Medica Cas PHARMACEUTICAL COMPOSITION OF LONG-ACTING ROPIVACAINE, PREPARATION METHOD AND USE THEREOF
CN115068414B (zh) * 2021-03-16 2023-07-21 湖南慧泽生物医药科技有限公司 供注射用罗哌卡因长效溶液制剂及其制备方法
CN115463084B (zh) * 2021-06-10 2024-05-28 北京泰德制药股份有限公司 一种长效镇痛用复方油溶液制剂及其制备方法
WO2023115311A1 (zh) * 2021-12-21 2023-06-29 南京清普生物科技有限公司 一种缓释制剂组合物

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1533764A (zh) * 2003-04-02 2004-10-06 王玉万 含非甾体抗炎药物的缓释注射剂
CN101926757A (zh) * 2010-09-01 2010-12-29 北京大学 一种难溶性药物的液体组合物及其制备方法
CN102370619A (zh) * 2010-08-18 2012-03-14 罗和国 脂肪乳乳化局麻药

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003077885A2 (en) * 2002-03-12 2003-09-25 Neurogesx, Inc. Free-base formulations of local anesthetics
US20040001889A1 (en) * 2002-06-25 2004-01-01 Guohua Chen Short duration depot formulations
BR0318319A (pt) 2003-05-25 2006-07-18 Yuwan Wang métodos de preparação e formulações/composições sustentadas pelo uso de dimeticona como veìculo
AU2006326018B2 (en) * 2005-12-14 2013-04-18 Nuvo Research Inc. Compositions and methods for dermally treating pain
US20100041704A1 (en) * 2007-01-12 2010-02-18 Aberg A K Gunnar Dermal compositions of substituted amides and the use thereof as medication for pain and pruritus
BRPI0807880A2 (pt) * 2007-03-02 2014-06-17 Combe Internat Ltd Composição anestésica em spray.
US20140066481A1 (en) 2010-04-01 2014-03-06 Pharmanest Ab Water-Free Pharmaceutical Compositions Suitable for Local Anaesthetics

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1533764A (zh) * 2003-04-02 2004-10-06 王玉万 含非甾体抗炎药物的缓释注射剂
CN102370619A (zh) * 2010-08-18 2012-03-14 罗和国 脂肪乳乳化局麻药
CN101926757A (zh) * 2010-09-01 2010-12-29 北京大学 一种难溶性药物的液体组合物及其制备方法

Non-Patent Citations (14)

* Cited by examiner, † Cited by third party
Title
BO XIONQ; QIQING SHI; XUAN WANQ: "Effect of local ropivacaine infiltration on post-op pain in pediatric appendectomy", CHINESE JOURNAL OF CLINICAL PHARMACOLOGY AND THERAPEUTICS, vol. 13, no. 5, 2008, pages 5731
JINHUI XIAO: "Clinical observation on application of ropivacaine at different concentrations in labor analgesia", MODEM CHINESE DOCTOR, vol. 45, no. 6, 2007, pages 111
JUNMIN ZHENG: "Handbook of Pharmaceutical Adjuvants", pages: 313 - 314
NIIYAMA Y; KAWAMATA T; SHIMIZU H ET AL.: "The addition of epidural morphine to ropivacaine improves epidural analgesia after lower abdominal surgery", CAN J ANAESTH, vol. 52, no. 2, 2005, pages 181
QIHONG ZHAO; PENG WEI; WENTAO DAI: "Comparative researches on transaxillary brachial plexus block using ropivacaine at different concentrations", APPLIED JOURNAL OF GENERAL PRACTICE, vol. 5, no. 4, 2007, pages 2931
SAKELLARIS G; PETRAKIS I; MAKATOUNAKI K ET AL.: "Effects of ropivacaine infiltration on cortisol and prolactin responses to post operative pain after inguinal hemioraphy in children", PEDIATR SURG, vol. 39, no. 9, 2004, pages 1400
See also references of EP2949316A4
SHANGLONG YAO; HUAQING SHU: "Develeopment in pain therapeutics", JOURNAL OF CLINICAL INTERNAL MEDICINE, vol. 22, no. 12, 2005, pages 793 - 796
SHENGJIAO WU; WENLI CHENG; FENG GUO ET AL.: "Clinical observation of low concentration of ropivacaine hydrochloride in combination with fentanyl in epidural self-controlled labor analgesia", JIANGXI MEDICAL JOURNAL, vol. 43, no. 1, 2008, pages 361
SHITONG LI; XINLIANG ZHUANG, LOCAL ANESTHETICS, 2009, pages 76 - 83
SHUNFU CHEN: "Comparison of gynecologic post-operative analgesic effect of ropivacaine and bupivacaine", JIUJIANG MEDICINE, vol. 17, no. 3, 2002, pages 1331
STRICHARTZ GR; BERDE CB: "Miller's Anesthesia", article "Local Anesthetics"
WANGJUN TANG; GUANGFEN YIN ET AL.: "Progress in post-operative pain and analgesia", JOURNAL OF DALI MEDICAL UNIVERSITY, vol. 2, no. 9, 2000, pages 68 - 70
ZONGLIN YANG; RONGZHI ZHENG; YUQIN ZHANG: "Merits of continuous epidural infusion with 0.1 % ropivacaine and 0.1% bupivacaine in post-op analgesia in elderly patients having received lower limb surgeries", SHAANXI MEDICAL JOURNAL, vol. 37, no. 2, 2008, pages 2461

Also Published As

Publication number Publication date
CN103142458B (zh) 2015-09-09
KR20150109474A (ko) 2015-10-01
EP2949316A4 (en) 2016-04-20
US20150359891A1 (en) 2015-12-17
CN103142458A (zh) 2013-06-12
US11364299B2 (en) 2022-06-21
KR101716793B1 (ko) 2017-03-15
EP2949316B1 (en) 2020-07-01
JP6205676B2 (ja) 2017-10-04
EP2949316A1 (en) 2015-12-02
JP2016505631A (ja) 2016-02-25

Similar Documents

Publication Publication Date Title
WO2014114032A1 (zh) 无成瘾性镇痛缓释递药系统及其制备方法
KR101351771B1 (ko) 바람직하게 saib와 같은 당 에스테르를 포함하는지속적인 국소 마취제 조성물
AU2013294915C1 (en) Opioid formulations
ES2357769T3 (es) Uso de palonosetrón para tratar la náuseas y los vómitos postoperatorios.
CA3037089C (en) Sublingual pharmaceutical composition of edaravone and (+)-2-borneol
NO20110342L (no) Fentanylpreparat for nasal administrering
KR20190060007A (ko) 덱스메데토미딘 경피 전달 장치를 이용한 통증을 관리하는 방법
CN109562281A (zh) 酚类trpv1激动剂的前药与局部麻醉药和血管收缩剂联合用于改善局部麻醉
US20240075024A1 (en) Opioid formulations
US20220193014A1 (en) Lipid pharmaceutical preparation and application thereof
IL266448B1 (en) Topical datumidine formulations
MX2007003948A (es) Composicion farmaceutica en forma de tableta sublingual que comprende un antiinflamatorio no esteroideo y un analgesico opiaceo para el manejo del dolor.
TW201406403A (zh) 用於治療外科手術疼痛之麻醉乳液調配物
WO2022193975A1 (zh) 供注射用罗哌卡因长效溶液制剂及其制备方法
JP2020519593A (ja) 溶解度を増強させた薬物含有製剤
WO2007022609A1 (en) Pharmaceutical composition of morphine in ready-to-use injectable solution form and single dosage form of morphine for epidural or intrathecal administration
US20100190860A1 (en) Methods for selectively enhancing antinociceptive potency of local anesthetics
JP5376481B1 (ja) 経皮吸収用医薬組成物
US20220387421A1 (en) Drug products for intranasal administration and uses thereof
CN105030775A (zh) 一种无成瘾性局部麻醉镇痛缓释递药系统及其制备方法
KR20080105857A (ko) 치질환 및 기타 항문 직장 질환 치료 활성을 가지는조성물과 이의 제조 방법 및 이를 이용한 치질환 치료제
RU2622980C1 (ru) Средство для эффективного купирования острого и/или хронического болевого синдрома и способ его применения
RU2323721C2 (ru) Местноанестезирующее и антисептическое средство
Swaminathan Comparative Evaluation of Transdermal Diclofenac and Oral Diclofenac in Management of Post Operative Pain in Bilateral Extractions: An In Vivo study
WO2005097115A1 (de) Verwendung von repinotan zur hemmung der opiat/opioid-induzierten atemdepression

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13872302

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2015554013

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 14762573

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: IDP00201505151

Country of ref document: ID

Ref document number: 2013872302

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 20157022974

Country of ref document: KR

Kind code of ref document: A