CN107693484A - A kind of rifampin gel and preparation method thereof - Google Patents

A kind of rifampin gel and preparation method thereof Download PDF

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Publication number
CN107693484A
CN107693484A CN201710819662.5A CN201710819662A CN107693484A CN 107693484 A CN107693484 A CN 107693484A CN 201710819662 A CN201710819662 A CN 201710819662A CN 107693484 A CN107693484 A CN 107693484A
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Prior art keywords
rifampin
gel
carbomer
glycerine
preparation
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CN201710819662.5A
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CN107693484B (en
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杨艳
叶莹
丁雁南
龚其海
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Affiliated Hospital of Zunyi Medical University
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Affiliated Hospital of Zunyi Medical University
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    • 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
    • A61K31/495Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/496Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
    • 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
    • A61K47/30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/32Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
    • 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
    • A61K9/0014Skin, i.e. galenical aspects of topical compositions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/06Ointments; Bases therefor; Other semi-solid forms, e.g. creams, sticks, gels

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Dermatology (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The present invention provides a kind of rifampin gel and preparation method thereof.The rifampin gel, including rifampin, glycerine, propane diols, carbomer, Laurocapram, absolute ethyl alcohol and two drop triethanolamines;The preparation method of the rifampin gel is included under the conditions of lucifuge soaks rifampin with 10% propane diols;Add 15% absolute ethyl alcohol;1% carbomer is spread in distilled water, heats and stirs 30 minutes in 60 DEG C of water-bath, it is fully swelled, and adds two drop triethanolamines;By the mixture of mixture caused by step 2 and 3 and step 4, the gel-type vehicle mixing of glycerine and Laurocapram is added, and adds 100g distilled water and stirs and obtain uniform and stable rifampin gel.Compared with correlation technique, the preparation method of rifampin gel provided by the invention has preferable transdermal penetration effect by what repetition test research was drawn, and transdermal characteristic is good, and medicine, which penetrates into, easily and effectively meets bactericidal effect.

Description

A kind of rifampin gel and preparation method thereof
Technical field
The present invention relates to pharmaceutical technology field, more particularly to a kind of rifampin gel and preparation method thereof.
Background technology
Tuberculosis is common infectious disease, the most common with pulmonary tuberculosis.Because tuberculosis has great infectiousness, having must Early treatment is carried out to it, it is therefore desirable to the antituberculotic of selection efficiently, sensitive, less toxic.Clinically typically by isoniazid With rifampin as most basic medicine, with pyrazinamide, ethambutol or remaining Drug combination, germ is killed to reach Purpose with palindromia is reduced, turns into most basic antituberculous chemotherapy scheme.Wherein rifampin is semi-synthetic broad spectrum antibiotic, Possess the antibacterial activity of height, there is obvious antibacterial action to tubercle bacillus, be clinically used to treat various tuberculosis, it is oral to inhale Keep well, but the excessive often toxic side effect of oral dose.
The rifampin formulation used at present is mostly injection and oral formulations, based on Formulations for systemic administration, exist renal toxicity and Hepatotoxicity wind agitation.For pulmonary tuberculosis focus with extensive fibroplasia, surrounding vessels distribution is less, influences blood circulation, causes medicine to penetrate into Difficulty, drug concentration are difficult to reach effective bacteriocidal concentration, antituberculosis drugs treat course for the treatment of length, and treatment needs Long term combined medication, It is also easy to produce many adverse reactions.
Therefore, improve concentration of the rifampin in lung has turned into one of focus for the treatment of tuberculosis research, such as lung-targeted microspheres, receives The novel forms such as the grain of rice, aerosolized liposomes and inhalation aerosol, but these medicines using when can be distributed to other organs, cause bad Reaction.
The content of the invention
Its percutaneous abilities is studied by preparing rifampin gel it is an object of the invention to provide one kind, is improved to reach The preparation method of the rifampin gel of adverse reaction, reduction dosage and administration number of times and other effects.
The present invention provides a kind of rifampin gel, including:Rifampin, glycerine, propane diols, carbomer, Laurocapram, nothing Water-ethanol and two drop triethanolamines.
Preferably, the proportioning of each composition is:1.5% rifampin, 10% glycerine, 10% propane diols, 1% carbomer, 1.0% Laurocapram, 15% absolute ethyl alcohol and two drop triethanolamines.
The present invention also provides a kind of method for preparing rifampin gel, comprises the following steps:
1) rifampin is soaked with 10% propane diols under the conditions of lucifuge;
2) 15% absolute ethyl alcohol is added;
3) 1% carbomer is spread in distilled water, heats and stir 30 minutes in 60 DEG C of water-bath, make it fully molten It is swollen, and add two drop triethanolamines;
4) by the mixture of mixture caused by step 2 and 3 and step 4, the gel of glycerine and Laurocapram is added Matrix mixes, and adds 100g distilled water and stir;
5) uniform and stable rifampin glue is obtained.
Preferably, 24 hours accumulation infiltration capacity average value of the rifampin is 204.14 ± 8.96 μ g/cm2, average infiltration Speed is 7.40 ± 0.47 μ g/cm2·h。
Preferably, the gel-type vehicle in the step 5 is Carbomer-940.
Compared with correlation technique, the preparation method of rifampin gel provided by the invention passes through what repetition test research was drawn With preferable transdermal penetration effect, transdermal characteristic is good, and medicine, which penetrates into, easily and effectively meets bactericidal effect.
Brief description of the drawings
Fig. 1 is efficient liquid phase reference substance solution chromatogram;
Fig. 2 is efficient liquid phase sample solution chromatogram;
Fig. 3 is efficient liquid phase negative control chromatogram;
Fig. 4 is the influence figure of carbomer content accumulation infiltration capacity percutaneous to rifampin;
Fig. 5 is the influence figure of content of propylene glycol accumulation infiltration capacity percutaneous to rifampin;
Fig. 6 is the influence figure of content of dispersion accumulation infiltration capacity percutaneous to rifampin;
Fig. 7 is the influence figure of Laurocapram content accumulation infiltration capacity percutaneous to rifampin.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.
A kind of rifampin gel provided by the invention includes:1.5% rifampin, 10% glycerine, 10% propane diols, 1% Carbomer, 1.0% Laurocapram, 15% absolute ethyl alcohol and two drop triethanolamines.
One kind provided by the invention prepares rifampin gel method and comprised the following steps:
S1 is equipped with following composition by proportioning:1.5% rifampin, 10% glycerine, 10% propane diols, 1% carbomer, 1.0% bay nitrogenKetone, 15% absolute ethyl alcohol and two drop triethanolamines.
24 hours accumulation infiltration capacity average value of rifampin is (204.14 ± 8.96) μ g/cm2, average release rate is (7.40±0.47)μg/cm2·h。
S2 soaks rifampin under the conditions of lucifuge with 10% propane diols.
S3 adds 15% absolute ethyl alcohol.
1% carbomer is spread in distilled water by S4, is heated and is stirred 30 minutes in 60 DEG C of water-bath, makes it fully molten It is swollen, and add two drop triethanolamines.
The mixture of mixture caused by step 2 and 3 and step 4 is added glycerine and bay nitrogen by S5The gel of ketone Matrix mixes, and adds 100g distilled water and stir.Gel-type vehicle is Carbomer-940.
S6 obtains uniform and stable rifampin glue.
This method is drawn by following experimental verification:
1st, laboratory apparatus and reagent
High performance liquid chromatograph (Agilent-1260-DAD-ELSD);Chromatographic column (Agilent ZORBAX SB-C18); 1/10000 electronic balance (FA2004N);NDJ-1A rotation viscometers;TK-24BL type percutaneous dispersion test instrument.Main agents are shown in Table 1.
The main agents of table 1 and raw material list
2nd, experimental animal is healthy male SPF levels SD mouse 20 (18~22g).
3rd, chromatographic condition
Agilent ZORBAX SB-C18 (4.6 × 250mm, 5 μm), with acetonitrile-(0.075molL-1 biphosphates Potassium -1.0molL-1 citric acids (9: 1) (45: 55) are mobile phase, Detection wavelength 254nm, flow velocity 1.0mLmin-1, sample introduction 10 μ L are measured, theoretical cam curve is calculated with rifampin should be not less than 2000.
4th, the preparation of rifampin gel
Rifampin gel is made as stated above.
5th, the preparation of isolated skin
With 10% chloraldurate by after SD mouse anesthesias, with electric shaver shaving, skin is peeled off, removes subcutaneous fat group Knit, with normal saline flushing, until cleaning fluid is haze-free, is put into 4 DEG C of refrigerators and preserves.Using belly skin in this experiment Skin.
6th, percutaneous penetration
Take the isolated skin to have thawed to carry out skin penetration test in vitro, made with the slow middle liquid (pH value 7.4) of 8mL phosphate Osmotic cell is added for acceptable solution.Osmotic cell temperature is maintained at (32 ± 0.1) DEG C, and 1 stirrer, electromagnetic agitation rotating speed are placed in pond 200rpm, diffusion area 3.14cm2.2.0mL is taken respectively at 1h, 3h, 5h, 7h, 9h, 11h, 24h time point, while adds equivalent Reception liquid.Using concentration of the HPLC measure rifampins in reception liquid, unit area accumulation infiltration capacity is obtained.To accumulate infiltration It is ordinate to measure (Qn), and the time (t) is abscissa, obtains the accumulation penetration curve of rifampin gel, curve obtained is returned Return, obtain the permeability J (μ g/cm2h) of rifampin gel.
7th, result
It is as shown in Figure 1 efficient liquid phase reference substance solution chromatogram, Fig. 2 is efficient liquid phase sample solution chromatogram, and Fig. 3 is Efficient liquid phase negative control chromatogram.
7.1 specificities are tested
Reference substance solution, sample solution, Blank gel solution determine according to chromatographic condition, the material in Blank gel and profit The flat separating degree of good fortune is good, and the appearance time of rifampin is 11.0min.
7.2 prepare standard curve
Precision weighs rifampin reference substance 0.103g, is 4.12,20.6,41.2 with mobile phase dissolved dilution to concentration, 82.4,123.6,164.8,329.6 μ g/ml need testing solution, high performance liquid chromatograph measure record peak area, respectively with peak Area A and concentration c (μ g/ml) are mapped for transverse and longitudinal coordinate, and obtaining calibration curve equation is:Y=19.137x-24.059, R2= 0.9995, illustrate rifampin in the range of 4.12~329.6 μ g/ml, its concentration and peak area are in good linear relationship.
7.3 relaxation shrinkages are tested
Compound concentration is that 82.4 μ g/ml rifampins reference substance solutions are added in Blank gel solution, is determined 6 times, average to return Yield is 103.81%, specific data such as table 2.
The determination of recovery rates result of table 2
7.4 precision determine
With the standard liquid that mobile phase compound concentration is 80.0,100.0,320.0 μ gmL-1, take 1mL and 1mL empty respectively White gel solution mixes, and takes mixed solution injection liquid chromatograph, records chromatogram, compareed after mixing containing various concentrations Three sample solution continuous sample introductions of product 6 times, withinday precision is calculated, three test samples containing low middle and high concentration reference substance RSD values are respectively 0.83%, 0.18%, 0.24%, specific data such as table 3.
The precision measurement result of table 3
Comparative example one
It is illustrated in figure 4 the influence figure of carbomer content accumulation infiltration capacity percutaneous to rifampin.With 10% glycerine, 10% the third Glycol, 1% rifampin, 10% ethanol, two drop triethanolamines, various concentrations carbomer prepare gel, investigate various concentrations card ripple Influence of the nurse content (0.5%, 1%, 1.5%) to rifampin gel transdermal penetration, as can be seen from the figure 1.0% carbomer For matrix when permeability it is best.
Comparative example two
It is illustrated in figure 5 the influence figure of content of propylene glycol accumulation infiltration capacity percutaneous to rifampin.With 10% glycerine, 1.5% Rifampin, 15% ethanol, two drop triethanolamines, 1% carbomer, various concentrations glycerine prepare gel, investigate various concentrations glycerine Influence of the content (5%, 10%, 15%) to rifampin gel transdermal penetration.Content of propylene glycol is as can be seen from the figure When 10% and 15%, the difference of the accumulation infiltration capacity of rifampin gel is smaller, is examined for the result from resource-effective angle Consider, the propane diols of final choice 10% prepares gel as cosolvent.
Comparative example three
It is illustrated in figure 6 the influence figure of content of dispersion accumulation infiltration capacity percutaneous to rifampin.With 10% glycerine, 10% the third two Alcohol, 1% carbomer, two drop triethanolamines, various concentrations rifampin prepare gel, investigate various concentrations rifampin content The influence of (1.5%, 1.8%, 2.0%) to rifampin gel transdermal penetration, it is 1.0% and 1.5% preparation by rifampin content Rifampin gel transdermal experiment result draw, it will be apparent from this figure that rifampin content be 1.5% when gel it is transdermal Property is best.
Comparative example four
It is illustrated in figure 7 bay nitrogenThe influence figure of ketone content accumulation infiltration capacity percutaneous to rifampin.With 10% glycerine, 10% propane diols, 1.5% rifampin, 15% ethanol, two drop triethanolamines, various concentrations bay nitrogenKetone prepares gel, investigates Various concentrations bay nitrogenInfluence of the ketone content (0.5%, 1%, 1.5%, 2.0%) to rifampin gel transdermal penetration, from this The azone of it can be seen from the figure that 1.0% is more preferable to gel transdermal performance.
The best prescription drawn according to research prepares 3 parts of rifampin gels, completes percutaneous penetration and calculates accumulation respectively The RSD values of transit dose and transmitance, it the results are shown in Table 4.
The percutaneous abilities checking of the rifampin gel of table 4
1.5% rifampin, 1% card ripple are finally filtered out by the Percutaneous permeability and permeability that compare rifampin gel Nurse, 15% absolute ethyl alcohol, 10% glycerine, 10% propane diols and 1.0% permeation enhancers bay nitrogenKetone is final prescription, and it has Preferable transdermal penetration effect.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims (5)

  1. A kind of 1. rifampin gel, it is characterised in that including:Rifampin, glycerine, propane diols, carbomer, Laurocapram, nothing Water-ethanol and two drop triethanolamines.
  2. 2. rifampin gel according to claim 1, it is characterised in that the proportioning of each composition is:1.5% rifampin, 10% glycerine, 10% propane diols, 1% carbomer, 1.0% Laurocapram, 15% absolute ethyl alcohol and two drop triethanolamines.
  3. A kind of 3. method for preparing rifampin gel as claimed in claim 1 or 2, it is characterised in that comprise the following steps:
    1) rifampin is soaked with 10% propane diols under the conditions of lucifuge;
    2) 15% absolute ethyl alcohol is added;
    3) 1% carbomer is spread in distilled water, heats and stir 30 minutes in 60 DEG C of water-bath, it is fully swelled, And add two drop triethanolamines;
    4) by mixture caused by step 2 and 3 and the mixture of step 4, glycerine and bay nitrogen are addedThe gel-type vehicle of ketone Mixing, and add 100g distilled water and stir;
    5) uniform and stable rifampin glue is obtained.
  4. 4. the preparation method of rifampin gel according to claim 1, it is characterised in that the rifampin is accumulated for 24 hours Infiltration capacity average value is 204.14 ± 8.96 μ g/cm2, average release rate is 7.40 ± 0.47 μ g/cm2·h。
  5. 5. the preparation method of rifampin gel according to claim 1, it is characterised in that the gel base in the step 5 Matter is Carbomer-940.
CN201710819662.5A 2017-09-06 2017-09-06 Rifampicin gel and preparation method thereof Expired - Fee Related CN107693484B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108653133A (en) * 2018-06-15 2018-10-16 吉林化工学院 A kind of preparation method of the anti-oxidant gelling agent of Maize silk flavones
CN108904812A (en) * 2018-08-27 2018-11-30 邛崃市医疗中心医院 With the external drug of the high transdermal characteristic prevention and treatment scapulohumeral periarthritis of carbomer collaboration transdermal agent

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100381124C (en) * 2004-09-09 2008-04-16 江苏正大天晴药业股份有限公司 Magnesium iso-glycyrrhetate gel and its preparing method and use
CN101138560B (en) * 2007-08-17 2010-08-25 深圳海创医药科技发展有限公司 Nitrofuran gelling agent and method of preparing the same
CN102266340B (en) * 2010-06-04 2014-05-14 梁建琴 Anti-tuberculosis gel preparation
RU2014154395A (en) * 2014-12-30 2016-07-27 Общество С Ограниченной Ответственностью "Научно-Производственный Центр "Амфион" HYDROGEL MATERIALS WITH AN ADJUSTABLE DATE OF BIODEGRADATION AND PRODUCTS BASED ON THEM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108653133A (en) * 2018-06-15 2018-10-16 吉林化工学院 A kind of preparation method of the anti-oxidant gelling agent of Maize silk flavones
CN108904812A (en) * 2018-08-27 2018-11-30 邛崃市医疗中心医院 With the external drug of the high transdermal characteristic prevention and treatment scapulohumeral periarthritis of carbomer collaboration transdermal agent

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