CN106377498A - Anti-parasites injection containing glyceryl triacetate, benzyl benzoate and castor oil - Google Patents

Anti-parasites injection containing glyceryl triacetate, benzyl benzoate and castor oil Download PDF

Info

Publication number
CN106377498A
CN106377498A CN201611014168.3A CN201611014168A CN106377498A CN 106377498 A CN106377498 A CN 106377498A CN 201611014168 A CN201611014168 A CN 201611014168A CN 106377498 A CN106377498 A CN 106377498A
Authority
CN
China
Prior art keywords
preparation
injection
glyceryl triacetate
benzyl benzoate
ivermectin
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201611014168.3A
Other languages
Chinese (zh)
Other versions
CN106377498B (en
Inventor
王玉万
游锡火
翁志飞
王金萍
韩可可
任亚楠
李莹
李雷
沈力
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongnonghuawei Pharmaceutical Co., Ltd
Original Assignee
Beijing Zhongnonghuawei Biological Medicine Research Institute
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 Beijing Zhongnonghuawei Biological Medicine Research Institute filed Critical Beijing Zhongnonghuawei Biological Medicine Research Institute
Priority to CN201611014168.3A priority Critical patent/CN106377498B/en
Publication of CN106377498A publication Critical patent/CN106377498A/en
Application granted granted Critical
Publication of CN106377498B publication Critical patent/CN106377498B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/335Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/365Lactones
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/7042Compounds having saccharide radicals and heterocyclic rings
    • A61K31/7048Compounds having saccharide radicals and heterocyclic rings having oxygen as a ring hetero atom, e.g. leucoglucosan, hesperidin, erythromycin, nystatin, digitoxin or digoxin
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dermatology (AREA)
  • Molecular Biology (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

By aiming at the problem of too slow medicine release of ivermectin oil injection prepared from benzyl benzoate and castor oil, the invention provides anti-parasites injection prepared by adding a certain amount of glyceryl triacetate into benzyl benzoate and castor oil, so that the fast-acting performance of the preparation is improved; in addition, the preparation still has the good long-acting effect. 0.1 to 10 percent (weight/volume ratio) of ivermectin medicine and cosolvents prepared from benzyl benzoate, glyceryl triacetate and castor oil are contained in the injection provided by the invention; in the cosolvents prepared from benzyl benzoate, glyceryl triacetate and castor oil, the volume percentage of the glyceryl triacetate is 10 to 38 percent; the volume percentage of castor oil is 15 to 40 percent; the balance is benzyl benzoate. Antioxidants and local analgetics can also be added in the injection.

Description

Parasiticide injection containing glyceryl triacetate, benzyl benzoate and Oleum Ricini
Technical field
The present invention relates to field of veterinary medicine preparation is and in particular to one kind is used for preventing and treating nematicide and ectozoa sense in animal body The oily injection of the medicine of class containing ivermectin of dye, said preparation feature is that long-acting and quick-acting effects are had both.
Background technology
The preventing and treating verminosis of the grazing animals such as cattle, sheep are typically more convenient with injection system administration, and use has The injection of long-acting can reduce times for spraying, thus reducing use cost.Therefore, it is subject to very much in veterinary clinic long-acting injection Welcome.Since the listing of ivermectin class medicine, research worker has been working hard preferably contain it is intended to develop parasiticide effect The long-acting injection of ivermectin class medicine, has contained the long-acting oil injection of ivermectin or avilamycin in the area such as South America Agent is allowed for cattle preventing and treating verminosis.But during the research in decades and Clinical practice, people's further insight Arrive, the long-acting injection of the medicine of class containing ivermectin remains a need for certain quick-acting effects and under secure conditions as far as possible Raising blood levels, the especially blood levels of peak phase.Otherwise, slow due to drug effect, peak phase blood medicine is dense Degree level is low, is unfavorable for the timely treatment of severe infection animal, is especially detrimental to killing and control to drug resistance worm strain The generation of drug resistance and development.
The studies and clinical application in past finds, the Yi Wei being prepared for slow-released carrier with Oleum Ricini or castor oil hydrogenated Although rhzomorph injection duration of efficacy is long, there is a problem of that the slow and blood peak concentration of drug level that drug effect is come is low.WO 99/27906 3.15% Yi Wei disclosing the preparations such as a kind of use acetylated monoglyceride, castor oil hydrogenated, glyceryl triacetate Rhzomorph oil injection, due to the addition of castor oil hydrogenated and acetylated monoglyceride, makes the rate of releasing drug of preparation significantly slow. Said preparation commercialization, by 0.63mg/kg b.w. dosage to a cattle shot, duration of efficacy is up to more than 70 day.This system Although agent dosage is 3.15 times of ordinary preparation (with 1% ivermectin injection of propylene glycol, formal glycerine preparation), But peak phase blood drug level (about 25ng/ml) is close with ordinary preparation.It is reported that, said preparation can be only achieved upon administration on the 28th day More than 90% anthelminthic effect.It is solvent preparation that patent CN 102316876A discloses one kind Oleum Gossypii semen with benzyl benzoate The oily injection containing doractin, said preparation with Oleum Ricini and ethyl oleate be solvent preparation preparation compare, it is steady Qualitative more preferably, it is fast that in addition, said preparation also has, the off-drug period is short, drug effect is come, and preparation still remains good slow release effect The feature of fruit.CN 104168886A discloses by non-aqueous carrier and the length comprising Oleum Ricini and at least one cyclic amides form Effect compositionss, it is said that said composition is used for animal parasitosis preventing and treating, have " quickly knocking down " (i.e. the quick-acting meaning) and " pole Good long-lasting nature ".CN 101703776A discloses a kind of infection long-acting injection, and the preparation method of injection is:To live Sexual element is dissolved in N-Methyl pyrrolidone and benzyl alcohol, is settled to 1000 milliliters with Oleum Ricini after stirring.Special at this Be related to the preparation of ivermectin durative action preparation in profit, but to described ivermectin formulation clinicing aspect feature not There is specific discussion.CN 1867341B discloses and comprises abamectin (AVERMECTIN B1) and Yi Wei for control parasite The compositionss of rhzomorph, the purpose that abamectin and ivermectin are applied in combination is the rapid release effect in order to improve preparation, A Ba Gram fourth rate of release in the oil medium being made up of Oleum Ricini is very fast, can make up ivermectin rate of release in Oleum Ricini Excessively slow defect, so that the injection containing Oleum Ricini has slow releasing function and is also provided with quick-acting effects.US The 6552002 parasiticide long-acting injections disclosing surfactant containing span and high drug load;Patent CN 104095812A disclose by oil medium add Poloxamer 188 (a kind of nonionic surfactant) method Lai Solve the problems, such as that oil preparation quick-acting difference and peak phase blood levels are low;Prepare the long-acting of high drug load with surfactant Injection, it is critical that sport technique segment, application is or not the control of the determination of dosage, the selection of surfactant and content When, it is understood that there may be problem include leading to preparation storage life to shorten, preparation character changes, inject after position increased response Even produce toxicity, these are all the problems that people are unwilling to accept.
Further, since Oleum Ricini has higher viscosity and it is limited to the solvability of ivermectin class medicine, therefore, In the disclosed long-acting injection containing Oleum Ricini (for example:CN 1215331A、CN 1293921C、CN 1197583C、CN 1867341B、CN 101312710A、CN 102316876A、WO 99/27906、CN 104095812A、CN 104168886A、 CN 101703776A, WO 97/11709, US 6552002 etc.), majority all applies and can reduce oil preparation viscosity and increase dissolving The auxiliary agent of degree, applies more auxiliary agent to be N-Methyl pyrrolidone, dimethyl acetylamide, ethyl acetate, ethyl oleate, benzoic acid Benzyl ester, also useful ethanol.Add these solvents in the formulation, the species due to adding is different, and addition is different, often carries It is only possible to some ill effects finding when coming commonly used.For example, ethanol, ethyl acetate, dimethyl acetylamide, N- methyl pyrrole Pyrrolidone etc. is not the good solvent of tissue tolerance, their application and need in terms of usage amount strict control, application Improper or because of animal difference, frequently can lead to animal injection site and the serious position reactions such as red and swollen and inflammation occur.Only use benzene Benzyl formate and vegetable oil to prepare during the long-acting injection of the medicine of class containing ivermectin although formulation An injection portion as solvent The zest of position is inconspicuous, but preparation lacks the stability stored, and deposits easy appearance precipitation and even occur to coagulate below 4 DEG C Gu.Especially only with the ivermectin injection of benzyl benzoate and the preparation of more Oleum Ricini, it is very slow that drug effect is come, blood medicine peak Concentration is low, bioavailability low (as the control formulation of embodiment 5).Poloxamer 188 is added to solve oil note in oil preparation When penetrating the low problem of the slow and peak phase blood drug level that agent drug effect comes, as with benzyl benzoate as solvent, when poloxamer in preparation When 188 contents are more than 3% about, place for a long time in low temperature, Poloxamer 188 can separate out, therefore, this kind of preparation is not suitable for Deposit under low temperature, this makes the application of commodity receive certain restriction, is unfavorable for commercialization popularization and application.
Glyceryl triacetate be a kind of prepare oily injection commonly use oil medium, be related to oily injection system in many All refer in standby patent application to prepare long-acting oil injection with glyceryl triacetate for medium, including with three second The injection that acid glyceride to prepare the medicine of class containing ivermectin for solvent (proposes to make with glyceryl triacetate for solvent earliest The patent application of standby ivermectin injection is EP 0 413538A1, EP 0 535734A1 and patent WO 99/27906).? In the patent application of the oily injection to prepare the medicine of class containing ivermectin with oil medium for solvent, many also all carries simultaneously To oily injection is prepared (such as oil medium with glyceryl triacetate, benzyl benzoate, vegetable oil (inclusion Oleum Ricini) The of CN 104168886A【0081】With【0099】Section), but all lack clearly discussion and the test support of concrete technical scheme. In other words, do not express the bacterium containing Yi Wei prepared by with benzyl benzoate, glyceryl triacetate, Oleum Ricini as oil medium The technical characteristic of the oily injection of element, the such as relation to the ratio of three kinds of oil mediums in preparation and preparation clinic drug effect, With the relation of internal blood drug level Changing Pattern, and the special role played of glyceryl triacetate etc. all specifically do not retouch State.
Content of the invention
Only release is had for the drug injection of class containing ivermectin prepared by solvent by benzyl benzoate and Oleum Ricini too slow Problem.The present invention proposes specific solution to this.This programme is by substituting part benzoic acid with glyceryl triacetate Benzyl ester, and suitable adjustment Oleum Ricini content in the formulation, in combination with the change of dosage, thus improve certain in preparation The rate of release of amount ivermectin class medicine, on the premise of maintaining long-acting, makes the quick-acting of preparation and peak phase blood medicine dense Degree level is improved;In solution proposed by the present invention, quick-acting and long-acting components are more specifically specify that And consumption, so that preparation has controllable slow releasing function and controllable initial release amount;By technology proposed by the present invention The preparation of scheme preparation also has the more preferable feature of stability (during preservation, to be prepared than with N-Methyl pyrrolidone and Oleum Ricini Preparation produce 2- epimer ivermectin less);With containing ethanol, dimethyl acetylamide, N-Methyl pyrrolidone Preparation compares, and invention formulation has also obtained further improvement in terms of tissue tolerance.
Preparation proposed by the present invention comprises the ivermectin class medicine of 0.1-10% (weight/volume) and by Benzyl Benzoate Ester, glyceryl triacetate, the cosolvent of Oleum Ricini composition;Antioxidant and local analgesic also can be added in preparation.By volume hundred Divide than calculating, in the described cosolvent being made up of benzyl benzoate, glyceryl triacetate, Oleum Ricini, glyceryl triacetate Content be 10-38%, the content of Oleum Ricini is 15-40%, balance of benzyl benzoate.
Described ivermectin class medicine include ivermectin, doractin, moxidectin, acetylamino evericin, The compositionss of one of avilamycin, selamectin or two kinds.They belong to Macrolide anti-parasite medicine.
Described glyceryl triacetate is a kind of zest very little to body tissue, have no toxic side effect, metabolizable oil Property solvent.It can use as solvent, cosolvent or diluent in the preparation of injection, because its safety is good, therefore, can Used as exclusive solvents in injection.In invention formulation, the Main Function of glyceryl triacetate has three aspects: (1) combine the solvent as dissolving ivermectin class medicine with benzyl benzoate and Oleum Ricini, its addition is not only further Reduce the viscosity of preparation, the shortcoming also overcoming benzyl benzoate easily solidification under cryogenic;(2) divided by blood drug level Analysis test, is found surprisingly that, adds a certain amount of triacetic acid in the ivermectin injection containing benzyl benzoate and Oleum Ricini After glyceride, can obviously improve the rapid release effect of preparation, and bioavailability significantly improves (see embodiment 5 and Fig. 1).Pass through The content ratio of glyceryl triacetate, benzyl benzoate and Oleum Ricini three in adjustment formula, and combine on the premise of safety Improve dosage, gratifying clinical effectiveness (see embodiment 6) can be obtained;(3) present invention utilize glyceryl triacetate and Benzyl benzoate combination to substitute ethanol, dimethyl acetylamide or N-Methyl pyrrolidone it will be apparent that reducing note as solvent Pain reaction when penetrating, makes injection be in tolerable level (see embodiment 7) to the zest of tissue.
The present invention select glyceryl triacetate replace Poloxamer 188 come to prepare have the long-acting effect that also has immediate effect containing her The reason dimension bacteriums drug injection, is, Poloxamer 188 is insoluble in vegetable oil, when with benzyl benzoate as hydrotropy During agent, preparation is deposited below 5 DEG C and is tended to have sticky material and separate out, and that is, preparation lacks the stability of storage, exist need in 5 DEG C with The deficiency of upper preservation, this is unfavorable for popularization and application.
According to information, in the oily injection of preparation, the consumption of benzyl benzoate reaches 70% still without observing Bad toxic and side effects.Effect played in this agent for the benzyl benzoate mainly has three aspects:(1) combine with Oleum Ricini, make For preparing slow-released carrier and the solvent of this agent.Test display, meltage in this system for the medicine such as ivermectin is up to 13% More than;In preparation, Semen Ricini oil content increases, and drug releasing rate slows down;When Semen Ricini oil content is constant, by Benzyl Benzoate ester content Improve, glyceryl triacetate content is reduced, drug releasing rate equally slows down;(2) unexpectedly observe in research process, Substitute ethanol, dimethyl acetylamide or N-Methyl pyrrolidone by the use of glyceryl triacetate and benzyl benzoate as solvent, The 2- epimer H2B1a (the 1% about of only H2B1a activity) producing during preserving is less, so that preparation has More preferable stability (see embodiment 7).(3) although relevant books are recorded glyceryl triacetate and are dissolved in Oleum Ricini, we Test display, both are simultaneously immiscible, and therefore, benzyl benzoate also acts as the effect of bridging solvent in this agent, that is, pass through benzene The addition of benzyl formate makes the heterogeneity liquid containing glyceryl triacetate and Oleum Ricini become homogeneous, stable, clear Liquid.The addition of benzyl benzoate should be not less than the 60% of glyceryl triacetate addition in the formulation, and otherwise preparation can divide Layer.
Described antioxidant include dibenzylatiooluene, tertiary butyl-4-hydroxy methoxybenzene, in propylgallate one Plant or more than one compositionss.Antioxidant content in the formulation is 0.02-0.5% (weight/volume percent).
Described local analgesia agent selects benzyl alcohol, and its addition in the formulation is 1-3% (percent by volume).
Preparation proposed by the present invention is applied to the preventing and treating of animal parasitosis, is particularly suited for pig, cattle, sheep parasite disease anti- Control, subcutaneously or intramuscularly to inject this agent, single administration, the preventing and treating phase can maintain 35-90 days even longer.When using, pass through Change dosage can adjust duration of efficacy, that is, in certain scope, dosage is bigger, the drug effect duration longer (see Embodiment 6).In medicament preparation process, by improving Semen Ricini oil content, the drug effect phase can be made to extend;Sweet by improving triacetic acid Glyceride content can make the rapid release effect of medicine strengthen, and can carry peak period blood levels, improves bioavailability (see enforcement Example 5).Therefore, by the change connected applications of glyceryl triacetate, the adjustment of Semen Ricini oil content and dosage in formula, can make The different clinical parasiticide injections needing must be practically applicable to, this is the technical characteristics feature of the present invention.
Brief description
Fig. 1 is preparation 15,16, the 17 and Comparative formulation blood concentration-time curve chart in sheep body.
Specific embodiment
With reference to specific embodiment, the technical characteristic of the present invention is further described.
Embodiment 1. prepares the injection of the medicine of class containing ivermectin
Preparation composition is shown in Table 1.Described in table 1, the preparation process of preparation is as follows:Will be sweet to benzyl benzoate, Oleum Ricini and triacetic acid Grease mixes, and stirs most homogeneous solution, adds active ingredient afterwards, is heated or not heated, and stirring is allowed to dissolve, and obtains final product this Invention preparation.Formulation process should aseptically be carried out, and all supplementary materials all should be aseptic.This preparation also can divide After dress sterilize, sterilising temp with 110 DEG C, 15-20 minute.
Table 1. preparation 1 forms to preparation 5
Composition Preparation 1 Preparation 2 Preparation 3 Preparation 4 Preparation 5
Ivermectin g 0.2 2 5 6 8
Glyceryl triacetate ml 15 25 30 31 31
Oleum Ricini ml 15 15 20 34 30
Benzyl benzoate ml 70 60 47 31 32
The parasiticide injection containing doractin for embodiment 2. preparation
Preparation 6 containing doractin is shown in Table 2 to preparation 10 composition, and preparation method is as follows:By benzyl benzoate, Oleum Ricini and Glyceryl triacetate mixes, and stirs most homogeneous solution, adds doractin, antioxidant and benzyl alcohol afterwards, heating or not Heating, stirring is allowed to dissolve, and obtains final product this agent.Formulation process should aseptically be carried out, and all supplementary materials all should Aseptic.This preparation also can sterilize after subpackage, sterilising temp with 110 DEG C, 15-20 minute.
Table 2. preparation 6 forms to preparation 10
Composition Preparation 6 Preparation 7 Preparation 8 Preparation 9 Preparation 10
Doractin g 0.1 0.5 3 5 7
Glyceryl triacetate ml 15 25 36 25 28
Oleum Ricini ml 30 28 26 35 40
Benzyl alcohol ml 1.3 2.5 2 3 2
BHA g 0.01 0.01 0.01 0.01 0.01
BHT g 0.02 0.02 0.02 0.02 0.02
Benzyl benzoate ml 54 44 36 34 30
The injection containing acetylamino evericin for embodiment 3. preparation
Composition containing acetylamino evericin injection is shown in Table 3;Preparation method is with embodiment 2.
Table 3. preparation 11 forms to preparation 14
Composition Preparation 11 Preparation 12 Preparation 13 Preparation 14
Acetylamino evericin g 3.5 6 8 10
Glyceryl triacetate ml 30 40 35 35
Oleum Ricini ml 15 18 18 25
Benzyl benzoate ml 54 41 46 38.5
BHA g 0.01 0.01 0.01 0.01
BHT g 0.02 0.02 0.02 0.02
Benzyl alcohol ml 1 1 1 1.5
Embodiment 4. preparation is containing 4% ivermectin oil injection
Oily injection composition containing 4% ivermectin is shown in Table 4;Formulation preparation method is with embodiment 2.
Table 4. preparation 15 is to preparation 17 and control formulation composition
Composition Preparation 15 Preparation 16 Preparation 17 Control formulation
Ivermectin g 4 4 4 4
Glyceryl triacetate ml 35 28 20 0
Oleum Ricini ml 15 28 15 28
Benzyl alcohol ml 1.5 1.5 1.5 1.5
BHA g 0.01 0.01 0.01 0.01
BHT g 0.02 0.02 0.02 0.02
Benzyl benzoate ml 46 40 61 68
Embodiment 5. preparation 15,16, the 17 and control formulation blood concentration assay in sheep body
Experimental animal and administration
The healthy sheep (Small-fat-tail sheep) 24 selecting 25-31 kg body weight is only used as test animal, correct amount.In administration Front collection blank plasma is detected, does not contain ivermectin after testing, you can for testing in its blood plasma.Test is divided into 4 groups, Numbering is 15 groups of preparation, 16 groups of preparation, 17 groups of preparation, control formulation group, respectively injection embodiment 4 in preparation 15, preparation 16, Preparation 17 and control formulation, in sheep cervical region subcutaneous injection, dosage is 0.4mg/kg b.w..Note sheep only during injection Pain reaction situation, note checking that injection site has or not redness, caking etc. when taking a blood sample every time, and make well-documented history.
Blood specimen collection and pretreatment
Injection gathered blood sample after 12 hours, 36 hours, 3 days, 5 days, 6 days, 8 days, 11 days, 16 days, 20 days, 35 days, often Secondary every sheep extracts 5 milliliters of blood from jugular vein, is added to equipped with the centrifuge tube of heparin sodium aqua, takes supernatant liquid after centrifugation (i.e. blood plasma) is in empty centrifuge tube.Samples taken should be carried out labelling and be stored in -20 DEG C of refrigerators.
Blood sample purification
Take the sheep plasma of -20 DEG C of preservations, room temperature places 1-2 hour, after making blood plasma recover room temperature, take 1 milliliter of blood plasma, plus 3.5 milliliters of methanol, concussion processes 1min, stands 20min, and 1200 × g is centrifuged 20min, takes supernatant away;Precipitation repeats previous step Suddenly;Merge supernatant twice, add 5 milliliters of ultra-pure waters, mix, use C18SPE post (500mg) purification, method is:Activated with methanol C18SPE post, with loading after 4 milliliters of 70% methanol aqueous solution balance, coutroi velocity about 1mL/min, afterwards successively with 4 milliliters pure Water, 4 milliliter of 70% methanol aqueous solution drip washing, with 4 ml methanol eluting in three times, eluent is placed in N in glass tubing2(55 DEG C) blow Dry.
Derivatization is detected with HPLC
In the glass tubing thoroughly drying up, it is initially charged N- Methylimidazole .-acetonitrile 200 μ L, concussion adds trifluoro second after mixing Anhydride-acetonitrile 200 μ L, mixes, and puts and adds methanol 600 μ L after reacting 10min at room temperature, crosses 0.22 μm of filter membrane, filter after mixing Liquid HPLC in time detection.Chromatographic condition is:Using SunFireTM C185 μm of 4.6 × 150mm chromatographic columns, mobile phase be water- Acetonitrile-methanol (5.5: 32: 62.5), is measured using fluorescence detector, and excitation wavelength is 365nm, and launch wavelength is 475nm, sample size is 10 μ L;Flow velocity is 1mL/min;Column temperature is 35 DEG C.
Result of the test
Result of the test is shown in table 5 and Fig. 1.From table 5 data and Fig. 1:(1) comparing preparation 16 with control formulation can See, when Semen Ricini oil content is the same, replace part benzyl benzoate with glyceryl triacetate, peak phase blood drug level is far above and is not added with three The control formulation of acetin, and Double-peak Phenomenon occurs, first time blood medicine peak occurred at 36 hours about, little 144 When about again peak occurs it is believed that the appearance on first time peak is likely to mainly glyceryl triacetate and part Yi Wei The effect that the release of rhzomorph is brought, the appearance on second peak should be that the release of benzyl benzoate/ivermectin is brought Effect.
This points out us, and by changing the ratio of glyceryl triacetate and Oleum Ricini in preparation, the controllability release of medicine is Can realize.This is the technical characteristics of this agent.(2) preparation 15, preparation 17 are compared visible, reduction Semen Ricini with preparation 16 Oil content, peak phase blood drug level significantly improves, and the glyceryl triacetate adding is more, and peak phase blood drug level is higher;With right Compare according to preparation, peak reaching time of blood concentration is early, reached blood medicine peak at the 3rd day about, and does not contain glyceryl triacetate Matched group, whole process release is gentle, but blood peak concentration of drug level is too low.Above-mentioned result of the test shows, glyceryl triacetate has Play the role of to accelerate ivermectin release.
Ivermectin mean concentration (ng/mL) in each time point sheep plasma of table 5.
h Preparation 15 Preparation 16 Preparation 17 Control formulation
12 5.2 4.8 4.2 3.6
36 13.1 11.2 9.6 7.1
72 16.7 7.5 13.8 7.4
120 14.3 10.5 12.5 8.0
144 13.3 11.3 11.3 8.7
192 9.9 7.1 10.7 6.5
264 4.5 4.4 4.8 5.2
384 1.8 3.3 3.1 2.5
480 1.3 1.9 2.4 2.1
After the preparation 17 of embodiment 6. sheep injection various dose, plasma ivermectin concentrations measure
Experimental animal and administration
Select the healthy sheep 24 of 27-35 kg body weight, be divided into 3 groups (the 1st group, the 2nd group and the 3rd groups) at random.Accurately Weigh, through the preparation 17 in cervical region skin injection embodiment 5, gather blank plasma before administration.Organizing 1 dosage is 0.4mg/kg b.w.;Organizing 2 dosages is 0.8mg/kg b.w.;Organizing 3 dosages is 1.2mg/kg b.w..Sheep pain is noted during injection Response situation, and record.
Blood specimen collection and the test side such as pretreatment, blood sample preservation, blood sample purification and derivatization, chromatographic condition of HPLC detection Method is same as Example 5, and plasma ivermectin concentrations analysis result is shown in table 6.
After the preparation 17 of table 6. sheep injection various dose, plasma ivermectin concentrations measure
Time (my god) 2 5 10 15 20 35 55 75 90
1st group 10.8 14.7 6.5 4.4 3.1 1.1 0.3 ND ND
2nd group 16.7 19.2 11.8 10.4 6.5 4.3 1.9 0.7 ND
3rd group 19.5 27.9 18.5 15.1 11.2 7.5 3.8 1.8 0.6
From upper table data, increase with dosage, peak phase blood levels improve, effective blood drug concentration (literary composition Offer and be recited as 0.5ng/ml) persistent period also extends, therewith with 1.2mg/kg b.w. dosed administration (the 3rd group), effective blood Concentration can continue until 75-90 days.The upper table Notes of Key Data we:In Clinical practice, user can as needed, in 3.5mg/ In the range of the dosage of kg b.w (see the safety testing of embodiment 7), drug effect is changed by change dosage and continues Time.This is the outstanding feature that this preparation has in terms of clinical practice.
The character of embodiment 7. preparation 17, stability, safety and irritation test
1. the character of preparation and stability test
Preparation in embodiment 5 is the slightly sticky liquid of clear, places in -18 DEG C, and formulation viscosity increases, but not Occur to solidify and precipitation occurs, preparation is placed 12 months in 30-32 DEG C, with HPLC detection, the decrement of ivermectin is only just The 0.49-0.72% of beginning amount, the relative amount of 2- epimer H2B1a is 0.18-0.26%, monosaccharide ivermectin relative Content is 0.33-0.49%.Above test data shows preparation stabilization, and quality has reached commercial requirements.When with N- methyl pyrrole When pyrrolidone is as cosolvent, the relative amount of 2- epimer H2B1a is 0.67-0.92%.
2. the safety of preparation and irritation test
Select the healthy sheep 8 that body weight is 28-33 kilogram, correct amount, by 3.5mg/kg b.w. dosage through cervical region skin Lower ejection preparation 17, the behavior of experimental animal, the situation of change of injection site and body weight after observation medication in 30 days.Result shows Show, upon administration, 8 sheep all search for food normally, no any Deviant Behavior;Injection site no lump;It is administered latter 30 days and weighs, put down All daily gains 0.18-0.27 kilogram, with the matched group zero difference by 0.4mg/kg b.w. dosed administration.This result of the test explanation 3.5mg/kg b.w. dosed administration pressed by this preparation, to sheep safety.In addition, we analyze (embodiment in process of the test in blood medicine 5th, embodiment 6) to observe, when injecting, to sheep, the preparation that the present invention provides, no because the struggle phenomenon that pain leads to occurs, this says Bright preparation zest is inconspicuous.In addition, in addition to indivedual sheep, injection site no lump produces, the sheep producing lump only (accounts for Test sheep only 2.2%) caused by misoperation when being likely to and injecting.
Blood drug level detection in sheep body for the embodiment 8. abamectin injection (AVM)
1. the formula composition of preparation is shown in Table 7
Table 7. preparation 18,19 and the composition of Comparative formulation
2. determination of plasma concentration
Select the healthy sheep 24 of 33-37 kg body weight, divide 3 groups, every group 8, correct amount is after cervical region subcutaneous injection Preparation 18, preparation 19 and Comparative formulation, dosage is 1.0mg/kg b.w, takes a blood sample on time, because being primary dcreening operation, in order to mitigate Workload, is isolated and purified after same group, the plasma sample mixed in equal amounts of same time, measures AVM hereinafter in blood plasma with HPLC Rhzomorph content (ng/ml).Isolate and purify, the specific operation process such as fluorescence derivation and HPLC measure with reference to " Pan Baoliang, Wang Ming, Wang Yuwan, the foundation of sheep plasma avilamycin fluorescence highly effective liquid phase chromatography detection method, Chinese veterinary's science and technology, volume 32, the 11st Phase, 2002, the 8-11 page " in method carry out.The measurement result of blood plasma avilamycin concentration (ng/ml) is shown in Table 8.
The measurement result of table 8. blood plasma avilamycin concentration (ng/ml)
Time (my god) 1 3 5 10 20 35 50 65
Preparation 19 14.5 18.3 23.1 15.7 5.1 3.1 1.3 0.4
Preparation 18 13.3 27.2 16.4 12.1 4.2 2.6 0.5 ND
Comparative formulation 8.8 12.1 16.5 9.4 5.6 4.3 2.5 0.6
As can be seen from Table 8, the Comparative formulation peak phase blood levels without glyceryl triacetate are significantly lower than containing three The preparation 19 of acetin and preparation 18, and peak time is slow, but effective blood drug concentration level can maintain about 65 days.This Illustrate Oleum Ricini to have significantly to slow down the effect of drug release, glyceryl triacetate has the work improving preparation initial release amount With;Glyceryl triacetate content improves, and initial release amount improves.
The explanation of this result of the test:Oleum Ricini has good slow releasing function;Glyceryl triacetate can make preparation rapid release effect Improved, suitable ratio is in by the content adjusting both and can prepare the long-acting injection with quick-acting effects, should The value of preparation is that it is more suitable for generation and the development of killing and delay drug resistance of drug resistance worm strain.Through screening test table Bright:In every 100 ml of formulation, the Optimum Contents of avilamycin are 3-6 gram, and the Optimum Contents of Oleum Ricini are 30-38 milliliter, three Acetin 12-18 milliliter (balance of benzyl benzoate), active ingredient content, Semen Ricini oil content and glyceryl triacetate contain Amount within this range, and adjusts dosage when being used in combination, you can ensure that preparation has drug effect next fast, peak concentration level and carries High advantage.Also ensure that preparation still has long-acting.

Claims (3)

1. a kind of animal anti-parasitic injection, described infusion pump contains the ivermectin class medicine of 0.1-10%, weight/body Long-pending ratio, adds to 100% by the cosolvent that benzyl benzoate, glyceryl triacetate, Oleum Ricini form, volume ratio;
In the described cosolvent being made up of benzyl benzoate, glyceryl triacetate, Oleum Ricini, the volume of glyceryl triacetate Degree is 10-38%, and the volume percent content of Oleum Ricini is 15-40%, balance of benzyl benzoate, and benzene first The content of acid benzyl ester is not less than the 60% of glyceryl triacetate content;
Described ivermectin class medicine includes ivermectin, doractin, moxidectin, acetylamino evericin, AVM hereinafter The compositionss of one of rhzomorph, selamectin or two kinds.
2. the injection as described in claim 1 is it is characterised in that comprise the antioxygen of 0.02-0.5% in described injection Agent, weight/volume percent, described antioxidant includes dibenzylatiooluene, tertiary butyl-4-hydroxy methoxybenzene, gallic acid One of propyl ester or more than one compositionss.
3. the injection as described in claim 1 or claim 2 any one is it is characterised in that wrap in described injection Benzyl alcohol containing 1-3%, percent by volume.
CN201611014168.3A 2016-11-18 2016-11-18 Anti parasitic injection containing glyceryl triacetate, Ergol and castor oil Active CN106377498B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611014168.3A CN106377498B (en) 2016-11-18 2016-11-18 Anti parasitic injection containing glyceryl triacetate, Ergol and castor oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611014168.3A CN106377498B (en) 2016-11-18 2016-11-18 Anti parasitic injection containing glyceryl triacetate, Ergol and castor oil

Publications (2)

Publication Number Publication Date
CN106377498A true CN106377498A (en) 2017-02-08
CN106377498B CN106377498B (en) 2019-08-13

Family

ID=57958968

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611014168.3A Active CN106377498B (en) 2016-11-18 2016-11-18 Anti parasitic injection containing glyceryl triacetate, Ergol and castor oil

Country Status (1)

Country Link
CN (1) CN106377498B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109197882A (en) * 2018-09-14 2019-01-15 河北威远生物化工有限公司 A kind of emamectin benzoate B2a/B2b benzoate emulsion and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104490768A (en) * 2014-12-01 2015-04-08 上海同仁药业有限公司 Doramectin injection and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104490768A (en) * 2014-12-01 2015-04-08 上海同仁药业有限公司 Doramectin injection and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109197882A (en) * 2018-09-14 2019-01-15 河北威远生物化工有限公司 A kind of emamectin benzoate B2a/B2b benzoate emulsion and preparation method thereof
CN109197882B (en) * 2018-09-14 2021-07-30 河北威远生物化工有限公司 Emamectin benzoate emulsion B2a/B2B and preparation method thereof

Also Published As

Publication number Publication date
CN106377498B (en) 2019-08-13

Similar Documents

Publication Publication Date Title
KR100917809B1 (en) Stable Pharmaceutical Composition containing Docetaxel
KR20090052920A (en) Stable pharmaceutical composition containing taxane derivatives, and method of manufacturing the same
AU2016258642B2 (en) Cabazitaxel fat emulsion injection, and preparation method and use thereof
Zeng et al. Pharmacokinetics and safety of ginsenoside Rd following a single or multiple intravenous dose in healthy Chinese volunteers
CN102697795B (en) Anti-tumor combined medicament
CN107811967A (en) Anti-parasite medicine in-situ solidification sustained-release injector and preparation method thereof
CN101926813B (en) Veterinary compound anti-parasitic injection and preparation method thereof
CN103251565A (en) Voriconazole freeze-dried powder injection for injection and preparation method thereof
WO2013143300A1 (en) Sustained-release preparation of fulvestrant or derivatives thereof and preparation method therefor
Geng et al. Study of an injectable in situ forming gel for sustained-release of Ivermectin in vitro and in vivo
CN106377498A (en) Anti-parasites injection containing glyceryl triacetate, benzyl benzoate and castor oil
CN102342931B (en) Injectable parenteral medicinal preparation of temozolomide and preparation method thereof
CN101623255B (en) Artesunate nanoemulsion drug composition and preparation method thereof
CN112957320A (en) Pharmaceutical preparation
CN102940630A (en) Medicinal composition containing temsirolimus and preparation method of medicinal composition
CN104906590B (en) Valnemulin parenteral solution containing brazil wax
CN113041222B (en) Injection emulsion and preparation method thereof
CN101455648A (en) Puerarin freeze-drying preparation
CN1867341B (en) Compositions for controlling parasites comprising a combination of abamectin and milbemycin
CN1256948C (en) Avermectin containing parasite resisitant long-acting injectio
CN108289897B (en) Pharmaceutical composition of remazolam
CN104771360A (en) Artemether nanoemulsion pharmaceutical composition and preparation method thereof
CN101485632B (en) Nimodipine lipid microsphere injection and preparation method thereof
CN104173278A (en) Subcutaneous injection administration system based on Brij97 liquid crystal and preparation method of subcutaneous injection administration system based on Brij97 liquid crystal
CN101422454A (en) Omega-3 polyunsaturated fatty acid tanshinone IIA sub-microemulsion and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20181205

Address after: 102209 C2034 2, 16 building, No. 37 Chao Yuan Road, Changping District science and Technology Park, Beijing.

Applicant after: Beijing Zhongnonghuawei pharmaceutical Limited by Share Ltd

Address before: 102206 Block C 510, Zhongguancun Life Science Park, Beiqing Road, Changping District, Beijing

Applicant before: Beijing Zhongnonghuawei Biological Medicine Research Institute

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Anti-parasites injection containing glyceryl triacetate, benzyl benzoate and castor oil

Effective date of registration: 20191128

Granted publication date: 20190813

Pledgee: Huaxia Bank Beijing branch Wanliu Limited by Share Ltd

Pledgor: Beijing Zhongnonghuawei pharmaceutical Limited by Share Ltd

Registration number: Y2019990000606

PE01 Entry into force of the registration of the contract for pledge of patent right
CP01 Change in the name or title of a patent holder

Address after: 102209 C2034 2, 16 building, No. 37 Chao Yuan Road, Changping District science and Technology Park, Beijing.

Patentee after: Zhongnonghuawei Pharmaceutical Co., Ltd

Address before: 102209 C2034 2, 16 building, No. 37 Chao Yuan Road, Changping District science and Technology Park, Beijing.

Patentee before: Beijing Zhongnong Huawei Pharmaceutical Co.,Ltd.

CP01 Change in the name or title of a patent holder
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20210531

Granted publication date: 20190813

Pledgee: Huaxia Bank Beijing branch Wanliu Limited by Share Ltd.

Pledgor: Beijing Zhongnong Huawei Pharmaceutical Co.,Ltd.

Registration number: Y2019990000606

PC01 Cancellation of the registration of the contract for pledge of patent right