CN108498531A - A kind of chitosan oral solution and preparation method thereof - Google Patents

A kind of chitosan oral solution and preparation method thereof Download PDF

Info

Publication number
CN108498531A
CN108498531A CN201810554042.8A CN201810554042A CN108498531A CN 108498531 A CN108498531 A CN 108498531A CN 201810554042 A CN201810554042 A CN 201810554042A CN 108498531 A CN108498531 A CN 108498531A
Authority
CN
China
Prior art keywords
chitosan
oral solution
weight
solubilizer
parts
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.)
Pending
Application number
CN201810554042.8A
Other languages
Chinese (zh)
Inventor
苏政权
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.)
Guangdong Pharmaceutical University
Original Assignee
Guangdong Pharmaceutical University
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 Guangdong Pharmaceutical University filed Critical Guangdong Pharmaceutical University
Priority to CN201810554042.8A priority Critical patent/CN108498531A/en
Priority to PCT/CN2018/103513 priority patent/WO2019227746A1/en
Publication of CN108498531A publication Critical patent/CN108498531A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • A61K31/715Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
    • A61K31/716Glucans
    • A61K31/722Chitin, chitosan
    • 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
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0087Galenical forms not covered by A61K9/02 - A61K9/7023
    • A61K9/0095Drinks; Beverages; Syrups; Compositions for reconstitution thereof, e.g. powders or tablets to be dispersed in a glass of water; Veterinary drenches
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P1/00Drugs for disorders of the alimentary tract or the digestive system
    • A61P1/04Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P1/00Drugs for disorders of the alimentary tract or the digestive system
    • A61P1/16Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/06Antihyperlipidemics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/08Drugs for disorders of the metabolism for glucose homeostasis
    • A61P3/10Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04Antibacterial agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P37/00Drugs for immunological or allergic disorders
    • A61P37/02Immunomodulators
    • A61P37/04Immunostimulants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00Drugs for disorders of the blood or the extracellular fluid
    • A61P7/02Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/12Antihypertensives

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Diabetes (AREA)
  • Hematology (AREA)
  • Immunology (AREA)
  • Epidemiology (AREA)
  • Obesity (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Molecular Biology (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Emergency Medicine (AREA)
  • Endocrinology (AREA)
  • Communicable Diseases (AREA)
  • Oncology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)

Abstract

The present invention provides a kind of chitosan oral solutions and preparation method thereof.The chitosan oral solution includes 6~12 parts by weight of chitosan;0.5~3.5 parts by weight of solubilizer;0.1~0.5 parts by weight of preservative.The oral solution of the present invention has stability good, the advantage that Clinical practice is safe, validity is good, has significant technical advantage.

Description

A kind of chitosan oral solution and preparation method thereof
Technical field
The present invention relates to field of medicaments, more particularly to a kind of oral solution of chitosan and preparation method thereof.
Background technology
Chitosan (chitosan, CTSH) is a kind of natural macromolecule alkaline polysaccharide next in number only to cellulose, by Glucose (β copolymers (1-4) and 2-amino-2-deoxy-D-Glucose) and N-acetyl-glucosamine (2-acetamido-2- Deoxy-d-glucose it) forms.
Chitosan has a variety of pharmacological activity, and such as bacteriostasis, antitumor action reduce blood glucose, reduce lipid-loweringing sterol, anti- Hypertension, strengthen liver function, Acidinhibitor, the healthcare function for gastrointestinal system, anticoagulant active, anti thrombotic action, Immunologic enhancement.But chitosan is insoluble in water, and bioavilability is poor in body, it is difficult to give full play to its bioactivity work( Energy.
Chinese patent CN101298502 discloses a kind of chitosan solid dispersion, specifically by chitosan and poly- second two Alcohol 4000- Macrogol 6000s are mixed with to obtain, to increase the water solubility of chitosan.Still there are chitosan microball, nanoparticle system The report of agent, as Chinese patent CN101978954A discloses a kind of preparation method and its usage of chitosan microball.
Dispersion degree of the oral liquid with drug is big, it is fast to absorb, and drug effect can be played rapidly by comparing with solid dosage forms;Easily It is convenient to take in divided dose, therefore be clinically widely used.Currently, not finding the oral solution of chitosan in the market.
Invention content
The purpose of the present invention is being directed to problems of the prior art, a kind of chitosan oral solution, the oral solution are provided Middle chitosan dissolubility is high, and better stability of preparation can ensure clinical application safety and validity, and convenient to take.
In view of chitosan poorly water-soluble, inventor is added to solubilizer, to carry during studying chitosan oral solution Rise its solute effect.The increase of solubilizer can make solubilizing effect have certain increase, but excessive solubilizer can make biological utilisation The raising of degree reaches saturation.Type and dosage of the present invention also to solubilizer in chitosan oral solution have carried out preferably.The present invention Chitosan oral solution solubilizer and chitosan are interacted so that chitosan is completely dissolved in the solution.
Since the dispersion degree of drug in liquid preparation is big, there is larger boundary and interface energy, accordingly, there exist certain journeys The unstability of degree, and aqueous liquid preparation is easy to go mouldy.For different drugs, it should be selected according to its own feature Suitable auxiliary material and its amount ranges ensure safety and the validity of clinical application to obtain preferable stability.
The present inventor finally determines technical scheme of the present invention by a large amount of experimental study.
The present invention is achieved by the following technical solutions.
The present invention provides a kind of chitosan oral solution, which includes the supplementary material of following weight proportion:
6~12 parts by weight of chitosan;
0.5~3.5 parts by weight of solubilizer;
0.1~0.5 parts by weight of preservative.
Preferably, the chitosan oral solution includes the supplementary material of following weight proportion:
8~10 parts by weight of chitosan;
1.2~2.0 parts by weight of solubilizer;
0.2~0.3 parts by weight of preservative.
In the chitosan oral solution of the present invention, the one kind of the solubilizer in propylene glycol, polyethylene glycol, tween Or it is a variety of;Preservative is one or more in ethylparaben, propylben, Potassium Benzoate.
The polyethylene glycol is cetomacrogol 1000, Macrogol 4000, Macrogol 6000 or PEG 8000 In one kind.
The tween is one kind in polysorbas20, polysorbate40 or polysorbate60.
As more preferred embodiment, the solubilizer is that weight ratio is 1:0.2 propylene glycol and polysorbate40;On The dissolubility of chitosan can be significantly improved by stating the solubilizer, and chitosan oral solution obtained is clarified, no muddiness.
Further, it is 1 that the preservative, which is weight ratio,:1 ethylparaben and propylben.
The present invention also provides the preparation methods of the chitosan oral solution.
The preparation method of oral solution comprises the steps of:Solubilizer is added in 1/3~2/3 purified water, is stirred evenly, so After be added chitosan, 35~40 DEG C of stirrings are to being completely dissolved;Preservative is added, after mixing plus purified water is to 1000ml, fills Dress, 115 DEG C sterilizing 15~20 minutes to get.
The present invention chitosan oral solution accelerated test investigate the result shows that, character, microbial limit, pH value and drug Content has no significant change compared with 0 month, and stability is good.The present invention chitosan oral solution long term test investigate the result shows that, Its character, microbial limit, pH value and medicament contg have no significant change compared with 0 month, and stability is good.With comparative example 1, comparison Example 2 is compared, and chitosan stability of Oral of the invention is more preferable, shows that the chitosan oral solution component of the present invention and proportioning are closed Reason.
The chitosan oral solution of the present invention compared with prior art, has the following advantages that:
1, by the present invention in that with specific auxiliary material and its dosage so that the stability of oral solution is good, ensure that clinical use The safety of medicine and validity.
2, chitosan oral medicine liquid dispersion degree of the present invention is big, it is fast to absorb, and convenient to take, drug effect plays rapid.
3, chitosan oral solution of the invention is simple for process, at low cost, is suitble to industrialized production.
Specific implementation mode
The composition and experiment effect of oral solution of the present invention are described in detail below by specific embodiment.
Embodiment 1
Chitosan 6g
Propylene glycol 0.5g
Potassium Benzoate 0.5g
Purified water Add to 1000ml
Preparation method comprises the steps of:Solubilizer is added in 1/3~2/3 purified water, stirs evenly, shell is then added Glycan, 35~40 DEG C of stirrings are to being completely dissolved;Preservative is added, after mixing plus purified water is to 1000ml, filling, 115 DEG C Sterilizing 15~20 minutes to get.
Embodiment 2
Chitosan 10g
Propylene glycol 1g
Polysorbate40 0.2g
Ethylparaben 0.1g
Propylben 0.1g
Purified water Add to 1000ml
Preparation method comprises the steps of:Solubilizer is added in 1/3~2/3 purified water, stirs evenly, shell is then added Glycan, 35~40 DEG C of stirrings are to being completely dissolved;Preservative is added, after mixing plus purified water is to 1000ml, filling, 115 DEG C Sterilizing 15~20 minutes to get.
Embodiment 3
Chitosan 8g
Propylene glycol 1.2g
Polysorbate60 0.24g
Propylben 0.3g
Purified water Add to 1000ml
Preparation method comprises the steps of:Solubilizer is added in 1/3~2/3 purified water, stirs evenly, shell is then added Glycan, 35~40 DEG C of stirrings are to being completely dissolved;Preservative is added, after mixing plus purified water is to 1000ml, filling, 115 DEG C Sterilizing 15~20 minutes to get.
Embodiment 4
Chitosan 12g
Polysorbas20 2.0g
Potassium Benzoate 0.1g
Purified water Add to 1000ml
Preparation method comprises the steps of:Solubilizer is added in 1/3~2/3 purified water, stirs evenly, shell is then added Glycan, 35~40 DEG C of stirrings are to being completely dissolved;Preservative is added, after mixing plus purified water is to 1000ml, filling, 115 DEG C Sterilizing 15~20 minutes to get.
Embodiment 5
Chitosan 10g
Cetomacrogol 1000 3.5g
Ethylparaben 0.3g
Purified water Add to 1000ml
Preparation method comprises the steps of:Solubilizer is added in 1/3~2/3 purified water, stirs evenly, shell is then added Glycan, 35~40 DEG C of stirrings are to being completely dissolved;Preservative is added, after mixing plus purified water is to 1000ml, filling, 115 DEG C Sterilizing 15~20 minutes to get.
Embodiment 6
Chitosan 8g
Propylene glycol 0.1g
Ethylparaben 0.15g
Propylben 0.15g
Purified water Add to 1000ml
Preparation method comprises the steps of:Solubilizer is added in 1/3~2/3 purified water, stirs evenly, shell is then added Glycan, 35~40 DEG C of stirrings are to being completely dissolved;Preservative is added, after mixing plus purified water is to 1000ml, filling, 115 DEG C Sterilizing 15~20 minutes to get.
Comparative example 1
Chitosan 10g
Propylene glycol 0.8g
Polysorbate40 0.4g
Ethylparaben 0.1g
Propylben 0.1g
Purified water Add to 1000ml
Preparation method is the same as embodiment 2.
Comparative example 2
Chitosan 10g
Propylene glycol 1g
Polysorbate40 0.2g
Ethylparaben 0.05g
Propylben 0.15g
Purified water Add to 1000ml
Preparation method is the same as embodiment 2.
The accelerated test of 1 chitosan oral solution of the present invention of test example
1, sample is investigated
The chitosan oral solution obtained with reference to the prescription and preparation method of 1-6.
2, test method
Accelerated test:Take the present invention totally 20 parts of chitosan oral solution, 40 DEG C ± 2 DEG C of temperature, relative humidity 75% ± It is placed 6 months under conditions of 5%, the 0th during experiment, respectively samples once within 1,3,6 month, investigate character, the pH value of oral solution And content.
Test result is shown in Table 1.
3, test result
It is investigated 6 months the result shows that the chitosan oral solution of 1-6 of the embodiment of the present invention is accelerated, character, microorganism limit Degree, pH value and medicament contg have no significant change compared with 0 month, illustrate that the chitosan stability of Oral of the present invention is good.
1 chitosan oral solution accelerated test result of the present invention of table
The long term test of 2 chitosan oral solution of the present invention of test example
1, sample is investigated
The chitosan oral solution obtained with reference to embodiment 2, comparative example 1, the prescription of comparative example 2 and preparation method.
2, test method
Long term test:Take the present invention totally 30 parts of chitosan oral solution, 25 DEG C ± 2 DEG C of temperature, relative humidity 60% ± It is placed 24 months under conditions of 10%, respectively at 0,3,6,12,24 month, each sampling was primary, investigated character, the pH value of oral solution And content.
Test result is shown in Table 2.
3, test result
The result shows that the chitosan oral solution of the embodiment of the present invention 2 is through long term test 24 months, character, microorganism limit Degree, pH value and medicament contg have no significant change compared with 0 month, illustrate that the chitosan stability of Oral of the present invention is good.Comparison When the chitosan oral solution long term test of example 1, there is turbid phenomenon, microbial limit detection is also against regulation;Comparative example 2 When chitosan oral solution long term test, there is turbid phenomenon, microbial limit detection is also against regulation.The above results show this The chitosan oral solution prescription and proportioning of invention are reasonable.
2 chitosan oral solution long-term test results of the present invention of table

Claims (7)

1. a kind of chitosan oral solution, which is characterized in that the oral solution includes the supplementary material of following weight proportion:
6~12 parts by weight of chitosan;
0.5~3.5 parts by weight of solubilizer;
0.1~0.5 parts by weight of preservative.
2. chitosan oral solution as described in claim 1, which is characterized in that the oral solution includes the original of following weight proportion Auxiliary material:
8~10 parts by weight of chitosan;
1.2~2.0 parts by weight of solubilizer;
0.2~0.3 parts by weight of preservative.
3. chitosan oral solution as claimed in claim 1 or 2, which is characterized in that the solubilizer is selected from propylene glycol, poly- second It is one or more in glycol, tween;The one kind or more of preservative in ethylparaben, propylben, Potassium Benzoate Kind.
4. chitosan oral solution as claimed in claim 3, which is characterized in that the polyethylene glycol be cetomacrogol 1000, One kind in Macrogol 4000, Macrogol 6000 or PEG 8000.
5. chitosan oral solution as claimed in claim 3, which is characterized in that the tween is polysorbas20, tween 40 or polysorbate60 in one kind.
6. chitosan oral solution as claimed in claim 3, which is characterized in that the solubilizer is that weight ratio is 1:0.2 Propylene glycol and polysorbate40;Preservative is that weight ratio is 1:1 ethylparaben and propylben.
7. the preparation method of the chitosan oral solution as described in claim 1~6 is any, which is characterized in that comprise the steps of: Solubilizer is added in 1/3~2/3 purified water, is stirred evenly, is then added chitosan, 35~40 DEG C of stirrings are to being completely dissolved; Preservative is added, after mixing plus purified water is to 1000ml, filling, 115 DEG C of sterilizings 15~20 minutes to get.
CN201810554042.8A 2018-06-01 2018-06-01 A kind of chitosan oral solution and preparation method thereof Pending CN108498531A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201810554042.8A CN108498531A (en) 2018-06-01 2018-06-01 A kind of chitosan oral solution and preparation method thereof
PCT/CN2018/103513 WO2019227746A1 (en) 2018-06-01 2018-08-31 Chitosan oral solution and preparation method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810554042.8A CN108498531A (en) 2018-06-01 2018-06-01 A kind of chitosan oral solution and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108498531A true CN108498531A (en) 2018-09-07

Family

ID=63402595

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810554042.8A Pending CN108498531A (en) 2018-06-01 2018-06-01 A kind of chitosan oral solution and preparation method thereof

Country Status (2)

Country Link
CN (1) CN108498531A (en)
WO (1) WO2019227746A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019227746A1 (en) * 2018-06-01 2019-12-05 广东药科大学 Chitosan oral solution and preparation method therefor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1985845A (en) * 2006-12-30 2007-06-27 哈尔滨华雨制药集团有限公司 Oral antilipemic liquid and its preparing method
CN101298502A (en) * 2007-04-30 2008-11-05 福建省医学科学研究所 Method for increasing chitose water-solubility
CN102441158A (en) * 2010-10-15 2012-05-09 天津瑞普生物技术股份有限公司 Eye drop having Cecropins for pet and preparation method thereof
CN104856978A (en) * 2015-05-18 2015-08-26 福建中医药大学 Chitosan spraying film agent and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108498531A (en) * 2018-06-01 2018-09-07 广东药科大学 A kind of chitosan oral solution and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1985845A (en) * 2006-12-30 2007-06-27 哈尔滨华雨制药集团有限公司 Oral antilipemic liquid and its preparing method
CN101298502A (en) * 2007-04-30 2008-11-05 福建省医学科学研究所 Method for increasing chitose water-solubility
CN102441158A (en) * 2010-10-15 2012-05-09 天津瑞普生物技术股份有限公司 Eye drop having Cecropins for pet and preparation method thereof
CN104856978A (en) * 2015-05-18 2015-08-26 福建中医药大学 Chitosan spraying film agent and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019227746A1 (en) * 2018-06-01 2019-12-05 广东药科大学 Chitosan oral solution and preparation method therefor

Also Published As

Publication number Publication date
WO2019227746A1 (en) 2019-12-05

Similar Documents

Publication Publication Date Title
CN105496981B (en) A kind of chitosan oligosaccharide tablet and preparation method thereof
JP2011513208A (en) Ganoderma spore oil fat emulsion, its quality control method and drug application method
CN104840430A (en) Chlorogenic acid (CA) and chitosan microspheres as well as preparation process and application thereof
CN110934824A (en) Solvent system capable of effectively dissolving ornidazole or levoornidazole and application thereof
CN104473876A (en) Tilmicosin soluble powder and preparation method thereof
CN1814166A (en) Pulse-promoting powder injecta and preparing method
US20200197425A1 (en) Preparation of pulsatilla saponin b4 for injection
CN102525963B (en) Netilmicin sulfate lyophiled powder injection and preparation method thereof
CN104367556B (en) A kind of preparation method and applications being provided that nitric oxide production hyaluronic acid nitrate deoxycholic acid polymer micelle
CN107049955A (en) A kind of multistage targeting hyaluronan nanoparticle for carrying methotrexate (MTX) and preparation method thereof
CN103006554B (en) Ornidazole injection and preparation method thereof
CN108498531A (en) A kind of chitosan oral solution and preparation method thereof
CN110917135A (en) Solvent system capable of effectively dissolving ornidazole or levoornidazole and injection thereof
CN106943346B (en) Methdigoxin liquid preparation, preparation method and application thereof
CN103860483A (en) Compound glycyrrhizin lyophilized powder injection and preparation method thereof
CN102657607A (en) Tilmicosin stabilizing agent and preparation method thereof
CN106474048A (en) A kind of more stable desonide gel preparation of quality
CN104800172B (en) Injection Carbazochrome Sodium Sulfonate powder-injection and preparation method
CN104958290A (en) Tofogliflozin and metformin compound preparation and preparation method thereof
CN104706655B (en) Meglumine cyclic adenosine for injecta powder-injection pharmaceutical composition and preparation method
CN105106108B (en) Supermolecule control slow-release salicylic acid formula and its technology of preparing
CN101411686A (en) Clarithromycin sub-microemulsion injection and preparation method thereof
CN110538144A (en) Ornidazole injection and S-ornidazole injection
CN102626427B (en) Ginkgo dipyridamole composition and preparation method of preparation thereof
CN105476954B (en) A kind of lomefloxacin hydrochloride injection and preparation method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180907