CN100435798C - Preparation of ligustrazine and ligustrazine salt drop pills utilizing nano technology - Google Patents
Preparation of ligustrazine and ligustrazine salt drop pills utilizing nano technology Download PDFInfo
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- CN100435798C CN100435798C CNB2005100748403A CN200510074840A CN100435798C CN 100435798 C CN100435798 C CN 100435798C CN B2005100748403 A CNB2005100748403 A CN B2005100748403A CN 200510074840 A CN200510074840 A CN 200510074840A CN 100435798 C CN100435798 C CN 100435798C
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Abstract
The present invention relates to a drop pill preparation of ligustrazine and ligustrazine salt by using a nano dispersed technology, which is composed of auxiliary constituents, such as, ligustrazine or ligustrazine salt, medicinal adjuvant, etc. The present invention has a preparation method that the nano-ligustrazine or the nano-ligustrazine salt is added to the melting medicinal adjuvant, and the mixture is homogenized at high pressure, and is dripped into a drop pill. After being condensed in a condensing agent, the drop pill is dried, and a ligustrazine drop pill preparation is prepared. The ligustrazine drop pill or the ligustrazine salt drop pill of the present invention has the advantages of quick dissolution time limit, rapid buccal absorption, high oral administration bioavailability and low toxic side effect.
Description
Technical field
The present invention relates to drop pill of a kind of ligustrazine and ligustrazine salt thereof and preparation method thereof, belong to technical field of medicine.
Technical background
Ligustrazine (Ligustrazine), have another name called tetramethylpyazine (Tetramethylpyrazine), be present cardiovascular clinical in a kind of important drugs commonly used, have antiplatelet aggregation and depolymerization, the expansion small artery, microcirculation improvement, cerebral blood flow and function of promoting blood circulation to disperse blood clots are used for ischemic cerebrovascular, the cerebral infarction that causes as cerebral blood supply insufficiency, cerebral thrombosis, cerebral embolism.
Be used for clinical ligustrazine at present two kinds of oral formulations are arranged, be tablet and capsule, be Ligustrazine Phosphate pill and ligustrazine phosphate capsule, injection comprises injection and sodium chloride injection, glucose injection and the lyophilized powder of ligustrazine hydrochloride and ligustrazine phosphate.The bioavailability of tablet and capsule lower (10-30%), and absorb slower.Injection mainly contains following side effect: stomach discomfort, xerostomia, drowsiness are arranged often, and decrement can be alleviated.Zest is stronger during acupoint injection therapy.Should note observing the variation of heart, blood pressure during intravenous drip, otherwise the side effect that generation is difficult to estimate; Slowly push during injection, and will often change the injection site, to reduce pain on injection; Because injection acidity is stronger, is unsuitable for a large amount of intramuscular injection.
The patent that relevant ligustrazine is declared has 13 at present; wherein drop pill is 2: (1) phosphoric ligustrazine drop and preparation method thereof (application (patent) number 03149886.8) application protection is a raw material with the ligustrazine phosphate; according to certain ratio; add surfactant polyethylene-substrate mix homogeneously such as [6000]; mixed material is heated to fusion; stir, drip and make drop pill.This technology belongs to general pharmacy worker's known technology.Irrelevant with the nano-encapsulated of saying application in this patent and nanorize technology.(2) ligustrazine or ligustrazine salt drop pill and preparation method thereof (application (patent) number 03143928.4) have applied for utilizing superfine communication technique and dropping pill formulation Technology, make ligustrazine or ligustrazine salt drop pill.The invention of patent content and present patent application does not conflict.
Ligustrazine is water insoluble, and easily distillation is and unstable, and more stable, energy is water-soluble owing to salify for ligustrazine phosphate and ligustrazine hydrochloride, discharges rapidly easily when not wrapping up, and can not keep the time than length, does not have nano-encapsulated also to cause very fast being eliminated of medicine.After making the nanometer drop pill, can not only avoid the first pass effect of medicine, more be to have improved bioavailability of medicament greatly, prolongs the time of blood drug level.
Summary of the invention
The object of the present invention is to provide a kind of oral administration dripping pill that utilizes nanotechnology to prepare ligustrazine and salt thereof,, improve bioavailability of medicament, a kind of novel pharmaceutical formulation of high-efficiency low-toxicity is provided for the patient to increase clinical pharmaceutical dosage form; Overcome injection and use inconvenience, the low shortcoming of bioavailability of side effect big (pain, lump difficulty disappear etc.) and tablet and capsule; And bring into play drop pill by the fast dosage form advantage of oral mucosa absorption, and reach the raising bioavailability, bring into play quick-acting therapeutical effect, utilize the nanorize technology prolong drug time in vivo, reach long lasting purpose, the toxic and side effects that reduces medicine takes place.Buccal is the vascularity that utilizes the oral cavity abundant, make medicine be absorbed into blood rapidly, reach the required blood drug level of treatment, most medicines are swallowed and are entered in the body in the time of buccal, because the poorly water-soluble of ligustrazine, general preparation is difficult to improve bioavailability of medicament and dispersive property, and this is the low immanent cause of its bioavailability.Medicinal adjuvant in the drop pill has good peptizaiton, can make medicine reach nanometer and micron-sized dispersion, reduces the chance of intermolecular collision, reaches the purpose that improves bioavailability.Another object of the present invention provides the nanorize preparation method of ligustrazine drop.
The specific embodiment
For achieving the above object, the present invention is implemented by following technical proposals.
1, the resulting drop pill of the present invention comprises following composition
Medicine of the present invention is the drop pill of being made by following component;
Pharmaceutical formulation 1:
Ligustrazine 5%～40% (W/W)
Medicinal adjuvant 60%～95% (W/W)
Pharmaceutical formulation 2:
Ligustrazine phosphate 5%～40% (W/W)
Medicinal adjuvant 60%～95% (W/W)
Pharmaceutical formulation 3:
Ligustrazine hydrochloride 5%～40% (W/W)
Medicinal adjuvant 60%～95% (W/W)
In the ligustrazine drop of above-mentioned each prescription, the amount of ligustrazine or ligustrazine hydrochloride or ligustrazine phosphate is 5%～40% (W/W) of drop pill gross weight; Preferred 10%～40% (W/W); Medicinal adjuvant is formed for one or more pharmaceutic adjuvants, accounts for 60%～95% (W/W) of drop pill gross weight.
Medicinal adjuvant in above-mentioned each prescription comprises drop pill substrate, surfactant (contain or do not contain), cosolvent (contain or do not contain).Drop pill substrate is meant that molecular weight is more than or equal to one or more the compositions in 1500 Polyethylene Glycol (PEG), Myrj 45, sodium stearate, glycerin gelatine, stearic acid, glyceryl monostearate, hydrogenated vegetable oil, the insect wax.The compositions of preferred Polyethylene Glycol-4000, Polyethylene Glycol-6000 and different proportion thereof.The best is the compositions of PEG-4000 and PEG-6000.Wherein yet can not contain or contain other does not influence drop pill substrate on a small quantity and returns other solid-state adjuvants at normal temperatures, as surfactant poloxamer, dodecyl sodium sulfate, CMS-Na and tween 80 etc., and preferred tween 80 and CMS-Na; These adjuvants help dispersion, stripping, uniformity and the stability of medicine.Also can use or not use some cosolvents, as ethanol, propylene glycol, glycerol, liquid macrogol, preferred alcohol.
2, the resulting drop pill of the present invention prepares by following method
The present invention adopts following preparation method:
(1) preparation of fused solution
1) takes by weighing medicinal adjuvant by formula ratio, wherein can also add other pharmaceutic adjuvants such as the tween 80 that help the drop pill Chinese medicine to discharge, CMS-Na etc., heat fused;
2) take by weighing the ligustrazine or the ligustrazine salt of formula ratio, the solid ligustrazine adopts the nano-pulverization technology to carry out nanorize, add surfactant and biodegradable macromolecular material, under high shear conditions, fully stir, obtain the sample of ligustrazine or ligustrazine salt nanorize;
3) above-mentioned nanorize sample is joined in the molten matrix, under high shear is stirred, make it to be uniformly dispersed, and under condition of high voltage, carry out homogenate, make uniform fused solution;
Perhaps according to following method preparation:
1) takes by weighing ligustrazine or ligustrazine salt (ligustrazine hydrochloride and ligustrazine phosphate) proper amount of solvent and cosolvent dissolving by formula ratio, after the slight fever dissolving, add surfactant and biodegradable macromolecular material, under high shear conditions, fully stir, obtain the sample of ligustrazine or ligustrazine salt nanorize;
2) above-mentioned sample is added in the medicinal adjuvant fused solution of formula ratio, under high shear is stirred, makes it to be uniformly dispersed, volatilize cosolvent, and under condition of high voltage, carry out homogenate, make uniform fused solution;
(2) preparation of drop pill
1) fused solution is put in the surge drum of drop pill machine, insulation with certain dripping in the fast condensed fluid that splashes under the proper temperature, is condensed into ball, collects drop pill;
2) remove coolant, drying can obtain the finished product of medicine.
It is simple that this preparation method has technology, adjuvant cheapness, the production characteristics that wait easy to control the quality.
The quality standard of raw material ligustrazine, ligustrazine hydrochloride, ligustrazine phosphate meets the requirement of China national drug standard in the prescription of medicine of the present invention.
In the preparation method of medicine of the present invention, the nanorize of ligustrazine or ligustrazine salt adopts the method that is prepared as follows: promptly under 10～80 ℃ that medicine, water and oil phase vigorous stirring is mixed, and be 6 * 10 with this mixture at pressure then
7Pa-18 * 10
7Carry out homogenize (high pressure homogenize) under the condition of Pa.Shear rate is preferably 2 * 10
6s
-1～5 * 10
8s
-1, more preferably 1 * 10
7s
-1～3 * 10
8s
-1(s
-1Represent second
-1).Oil phase comprises stearic acid, glyceryl monostearate, dodecyl sodium sulfate, poloxamer, tween 80 etc.; Preferred glyceryl monostearate, tween 80.Water comprises glycerol, propylene glycol, liquid macrogol, beta-schardinger dextrin-, water etc., preferred liquid Polyethylene Glycol, water.Mean diameter behind ligustrazine medicine after the high shear parcel is at 10-2000nm, preferred 20-800nm, more preferably 50-500nm.
In the preparation method of medicine of the present invention, liquid Paraffin, methyl-silicone oil, vegetable oil, kerosene all can be used as condensed fluid, are preferably liquid Paraffin, methyl-silicone oil.During as condensed fluid, the drop pill roundness is better with liquid Paraffin or methyl-silicone oil, size evenly, smooth surface, solid colour.The results are shown in Table 1.
The different condensing droplet system results of table 1
| Condensed fluid | Liquid Paraffin | Methyl-silicone oil | Vegetable oil | Kerosene |
| The drop pill mouldability | Formability is good | Formability is good | Formability is poor | Formability is good |
| The drop pill shape | Spheroidal | Spheroidal | Oblate spheroid | Lamellar |
| With the principal agent dissolubility | Do not dissolve | Do not dissolve | Do not dissolve | Do not dissolve |
In the preparation method of medicine of the present invention, these two kinds of methods of fusion method and solvent-fusion method all can be used as the method for making drop pill, but the preferred molten method.
With the uniformity of dosage units is index, proves that the uniformity of dosage units of fusion method and solvent-fusion method all meets the pharmacopeia regulation.From appearance luster, the drop pill color that fusion method and solvent-fusion method are made all is white in color, and size is even, smooth surface, solid colour.Take all factors into consideration the preferred molten method.
In the preparation method of medicine of the present invention, the holding temperature of fused solution is 60 ℃～110 ℃, is preferably 70 ℃～95 ℃, and the best is 75～90 ℃.
In the process of making ligustrazine-PEG fused solution, need continuous high-speed stirred or high-pressure homogenization, make it become homogeneous phase, otherwise will influence the roundness of drop pill.Therefore, after fused solution makes, must insulation place a period of time.Ligustrazine-PEG fused solution is incubated 20,25,30 minutes respectively under 85 ℃, drips the system drop pill then respectively, whether the surface of observing drop pill has plaque, to determine best temperature retention time.Found that, there is a small amount of very little plaque on the drop pill surface that is incubated 20,25 minutes molten melt drop system, show that being incubated 20,25 minutes bubbles does not catch up with only fully: be incubated the drop pill smooth surface of 30 minutes molten melt drop system, no plaque shows fused solution Ex-all fully after 30 minutes.
Therefore, in the preparation method of medicine of the present invention, the temperature retention time of fused solution is at least 20 minutes, is preferably at least 30 minutes.
Fused solution has a little hangover when water dropper drips, and when moving, fused solution then may bring the sub-fraction air into again in air, if the condensed fluid upper temp is too low, then hangover has little time withdrawal, air has little time to discharge fused solution and promptly solidifies, influences shaped degree of drop pill and surface flatness.Condensed fluid lower floor temperature is too high, and the fused solution condensation is incomplete, and drop pill can also influence the drop pill roundness in condensate line bottom adhesion.Through overtesting, upper strata condensed fluid height should be controlled at about 20cm to well, and following layer height is good with 30cm, and under this height, the drop pill condensation is complete, good moldability, adhesion.
Therefore, in the preparation method of medicine of the present invention, the temperature on condensed fluid top is 10～45 ℃, 15～35 ℃ of preferred temperature, 20～30 ℃ of optimum temperatures; The temperature of condensed fluid bottom is-10～10 ℃: preferred temperature-5～5 ℃, optimum temperature-3～3 ℃.Top condensed fluid height is preferably 10～35cm, preferred heights 15～30cm, optimum height 20cm; Bottom condensed fluid height is preferably 20～40cm, preferred heights 25～35cm, optimum height 30cm.
The present invention investigates dripping factors such as speed, a distance.In the preparation method of medicine of the present invention, drip apart from being 2～6cm, dripping speed is 10～100 droplets/minute; Be preferably and drip apart from 3～5cm, dripping speed is 30～70 droplets/minute.
Can find out the advantage of drop pill of the present invention from table 2.General about 5 minutes of drop pill dissolve scattered time limit of the present invention, (＞30min) molten loosing rapidly shortened the time that entering performance drug effect in the body than soft capsule and tablet.
Table 2 ligustrazine capsule and ligustrazine drop dissolve scattered time limit of the present invention are relatively
| Sample number into spectrum | 1 | 2 | 3 | 4 | 5 | 6 |
| Ligustrazine capsule min | 43 | 49 | 41 | 51 | 44 | 47 |
| Ligustrazine drop lot number 040918min | 5.1 | 4.8 | 4.6 | 4.7 | 4.9 | 4.8 |
Ligustrazine is indissoluble in water.For solid PEG ligustrazine is dissolved in wherein at normal temperatures, make it to be molecularity or nanometer distributions in drop pill, the molecular weight of PEG is bigger, lattice is made up of the parallel spiral chain of two row, when condensing after the fusion, the Polyethylene Glycol lattice produces all damagedly in the double-helical space, and damaged its character that changes of this lattice is as dissolubility, dissolution rate, absorbability and hygroscopicity etc.Ligustrazine is a micromolecular compound, can insert in the PEG molecule, thereby increase the dissolution rate and the infiltration rate of ligustrazine medicine, reaches the purpose of controlled release, and the dissolubility of ligustrazine in water increased greatly.Therefore, the present invention makes drop pill with ligustrazine, and its dissolution of back is better than capsule taking; And make drop pill, can swallow, can be dispersed with very soon under one's belt and be beneficial to gastrointestinal absorption.Can containing, more help the absorption of this product by the liposoluble passage of oral mucosa, directly enter blood circulation, onset in 5 minutes arrives blood drug level fast, continues long blood drug level, and effect more is better than common oral preparation.
In addition, ligustrazine drop of the present invention also has following advantage: little, the taking convenience of volume is easy to be accepted by the patient; The drop pill production process is few, and the cycle is short, the automaticity height, and the production efficiency height, cost is low, is easy to industrialization; The drop pill working condition is easy to control, and the ball method of double differences is different little, and content is more accurate, and quality is guaranteed; The bioavailability height of most critical, toxic and side effects is little; This dosage form is one of dosage form of country's recommendation at present.
3, the route of administration of the resulting ligustrazine drop of the present invention
The route of administration of ligustrazine drop is meant in various cardiovascular treatments to be used buccal and or swallows.According to the disease that gives object, body weight and the state of an illness, give dosage usually in the scope in 0.02-0.8 gram/sky.
The following examples are used to further specify the present invention, but they are not to attempt in office where face limits the scope of the invention.
Embodiment 1
Prescription (specification: the 10mg/ ball)
Ligustrazine 10g
Macrogol 4000 30g
Make 1000 altogether
Preparation method:
Weight proportion by each component is weighed, and Macrogol 4000 heating is made it fusion, and (particle diameter＜100nm) makes whole fusions constantly stirring, and [pressure is (8～10) * 10 to high-pressure homogenization to add ligustrazine nanorize fine powder
7Pa, shear rate is 5 * 10
7s
-1～2 * 10
8s
-1], after the homogenate, put in the reservoir of drop pill machine, 85 ℃ the insulation 30 minutes stand-by.Adjust and drip apart from being 4cm, at the uniform velocity splash in the liquid paraffin condensed fluid that contains methyl-silicone oil with 60 droplets/minute the speed of dripping, the temperature of condensed fluid top 20cm is 20 ± 2 ℃, and the temperature of bottom 30cm is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Molten diffusing timing: six batch samples that go out with above-mentioned prescription and explained hereafter are carried out molten diffusing timing, measurement result such as following table according to appendix X11A the 3rd method of Chinese Pharmacopoeia version in 2000.
| Lot number | 040918-1 | 040918-2 | 040919-1 | 040919-2 | 040920-1 | 040920-2 |
| The 1st ball | 4.5 | 4.6 | 4.5 | 4.3 | 4.6 | 4.7 |
| The 2nd ball | 4.2 | 4.3 | 4.4 | 4.5 | 4.3 | 4.6 |
| The 3rd ball | 4.6 | 4.5 | 4.8 | 4.2 | 4.4 | 4.7 |
| The 4th ball | 4.3 | 4.2 | 4.9 | 4.6 | 4.7 | 4.5 |
| The 5th ball | 4.4 | 4.5 | 4.2 | 4.3 | 4.5 | 4.4 |
| The 6th ball | 4.5 | 4.3 | 4.2 | 4.5 | 4.7 | 4.8 |
The result shows that prepared ligustrazine drop all has the molten faster diffusing time.
Embodiment 2
Prescription (specification: the 10mg/ ball)
Ligustrazine 10g
Polyethylene glycol 6000 25g
Polyethylene glycol 1500 5g
Tween 80 0.25g
Make 1000 altogether
Preparation method:
(1) ligustrazine adds tween 80, polyethylene glycol 1500 and suitable quantity of water, in (5～15) * 10
7s
-1Shear rate under nanorize, spray drying obtains the nano powder of ligustrazine.
(2) polyethylene glycol 6000 heating is made it fusion, add the ligustrazine nano powder, constantly stirring makes whole fusions, puts in the reservoir of drop pill machine, and 85 ℃ of insulations 30 minutes are stand-by.Adjust and drip apart from being 3cm, at the uniform velocity splash in the liquid paraffin condensed fluid with 50 droplets/minute the speed of dripping, the temperature of condensed fluid top 20cm is 23 ± 3 ℃, and the temperature of bottom 30cm is 5 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Embodiment 3
Prescription (specification: the 10mg/ ball)
Ligustrazine 10g
Polyethylene glycol 6000 20g
Macrogol 4000 5g
Glyceryl monostearate 5g
Tween 80 0.5g
Make 1000 altogether
Preparation method:
(1) ligustrazine adds tween 80, glyceryl monostearate, Macrogol 4000 and suitable quantity of water, in (8～12) * 10
7s
-1Shear rate under nanorize, spray drying obtains the ligustrazine nano powder, particle diameter detects with transmission microscopy.
(2) other method for making is with example 2 (2).
Embodiment 4
Prescription (specification: the 5mg/ ball)
Ligustrazine 5g
Polyethylene glycol 6000 20g
Macrogol 4000 5g
Glyceryl monostearate 5g
Tween 80 0.5g
Make 1000 altogether
Preparation method:
Preparation method is with example 3
Embodiment 5
Prescription (specification: the 5mg/ ball)
Ligustrazine hydrochloride 5g
Polyethylene glycol 6000 20g
Macrogol 4000 5g
Glyceryl monostearate 5g
Tween 80 0.5g
Make 1000 altogether
Preparation method:
(1) ligustrazine hydrochloride adds tween 80, glyceryl monostearate and Macrogol 4000, in (6～10) * 10 with an amount of water dissolution
7s
-1Shear rate under nanorize, spray drying obtains the nano powder of ligustrazine.
(2) other method for making is with example 2 (2).
Embodiment 6
Prescription (specification: the 5mg/ ball)
Ligustrazine hydrochloride 5g
Polyethylene glycol 6000 20g
Macrogol 4000 5g
Glyceryl monostearate 5g
Tween 80 0.5g
Make 1000 altogether
Preparation method:
(1) ligustrazine hydrochloride adds tween 80, glyceryl monostearate and Macrogol 4000, in (6～10) * 10 with an amount of water dissolution
7s
-1Shear rate under make the ligustrazine hydrochloride nano-emulsion.
(2) heating of Macrogol 4000 and stearic acid is made it fusion, add the ligustrazine nano-emulsion, constantly stirring makes whole fusions, volatilizes solvent, puts in the reservoir of drop pill machine, and 95 ℃ of insulations 30 minutes are stand-by.Adjust and drip apart from being 3cm, at the uniform velocity splash in the methyl-silicone oil condensed fluid with 70 droplets/minute the speed of dripping, the temperature on condensed fluid top is 20 ± 2 ℃, and the temperature of bottom is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Example 7
Ligustrazine phosphate 5g
Polyethylene glycol 6000 20g
Macrogol 4000 5g
Glyceryl monostearate 5g
Tween 80 0.5g
Make 1000 altogether
Preparation method:
Method for making is with example 6.
Embodiment 8
Prescription (specification: the 10mg/ ball)
Ligustrazine hydrochloride 10g
Polyethylene glycol 6000 26g
Stearic acid 2g
The husky female 0.5g in pool Lip river
Carboxymethyl starch sodium 0.5g
Make 1000 altogether
Preparation method:
The husky female heating of polyethylene glycol 6000, carboxymethyl starch sodium, stearic acid and pool Lip river is made it fusion, add the rare pure liquid of ligustrazine hydrochloride, make whole fusions constantly stirring, volatilize solvent, put in the reservoir of drop pill machine, 100 ℃ of insulations 30 minutes are stand-by.Adjust and drip apart from being 3cm, at the uniform velocity splash in the methyl-silicone oil condensed fluid with 70 droplets/minute the speed of dripping, the temperature on condensed fluid top is 20 ± 2 ℃, and the temperature of bottom is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Embodiment 9
Prescription (specification: the 10mg/ ball)
Ligustrazine hydrochloride 10g
Macrogol 4000 40g
Carboxymethyl starch sodium 0.5g
Make 1000 altogether
Preparation method:
Ligustrazine hydrochloride adds an amount of dehydrated alcohol, after slight fever makes dissolving, is added on fused Macrogol 4000 and CMS-Na, constantly stirs, and volatilizes ethanol, put in the reservoir of drop pill machine, 95 ℃ the insulation 30 minutes stand-by.Adjust and drip apart from being 3cm, at the uniform velocity splash in the methyl-silicone oil condensed fluid with 50 droplets/minute the speed of dripping, the temperature on condensed fluid top is 20 ± 2 ℃, and the temperature of bottom is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Embodiment 10
Prescription (specification: the 25mg/ ball)
Ligustrazine phosphate 25g
Polyethylene glycol 6000 12.5g
Macrogol 4000 12.5g
Make 1000 altogether
Preparation method:
Ligustrazine phosphate adds an amount of dehydrated alcohol, after slight fever makes dissolving, is added in the fused Polyethylene Glycol, constantly stirs, and volatilizes ethanol, put in the reservoir of drop pill machine, 85 ℃ the insulation 30 minutes stand-by.Adjust and drip apart from being 3cm, at the uniform velocity splash in the methyl-silicone oil condensed fluid with 50 droplets/minute the speed of dripping, the temperature on condensed fluid top is 20 ± 2 ℃, and the temperature of bottom is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Embodiment 11
Prescription (specification: the 10mg/ ball)
Ligustrazine phosphate 10g
Polyethylene glycol 6000 15g
Macrogol 4000 15g
Make 1000 altogether
Preparation method:
Method for making is with example 10.
Embodiment 12
Prescription (specification: the 15mg/ ball)
Ligustrazine phosphate 15g
Macrogol 4000 22g
Glycerin gelatine 2.8g
Insect wax 0.2g
Make 1000 altogether
Preparation method:
Weight proportion by each component is weighed, and Polyethylene Glycol, glycerin gelatine, insect wax heating are made it fusion, adds the ligustrazine phosphate nano powder, and constantly stirring makes whole fusions, puts in the reservoir of drop pill machine, and 80 ℃ of insulations 30 minutes are stand-by.Adjust and drip apart from being 4cm, at the uniform velocity splash in the liquid paraffin condensed fluid with 60 droplets/minute the speed of dripping, the temperature on condensed fluid top is 20 ± 2 ℃, and the temperature of bottom is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Embodiment 13
Prescription (specification: the 10mg/ ball)
Ligustrazine phosphate 10g
Macrogol 4000 25g
Glycerin gelatine 4g
Hydrogenated vegetable oil 0.5g
Poloxamer 0.5g
Make 1000 altogether
Preparation method:
Weight proportion by each component is weighed, and Polyethylene Glycol, glycerin gelatine, hydrogenated vegetable oil, poloxamer heating are made it fusion, adds ligustrazine phosphate, and constantly stirring makes whole fusions, puts in the reservoir of drop pill machine, and 85 ℃ of insulations 30 minutes are stand-by.Adjust and drip apart from being 4cm, at the uniform velocity splash in the liquid paraffin condensed fluid with 70 droplets/minute the speed of dripping, the temperature on condensed fluid top is 20 ± 2 ℃, and the temperature of bottom is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Embodiment 14
Prescription (specification: the 5mg/ ball)
Ligustrazine phosphate 5g
Macrogol 4000 25g
Glycerin gelatine 4g
Hydrogenated vegetable oil 0.5g
Poloxamer 0.5g
Make 1000 altogether
Preparation method:
Method for making is with example 14.
Embodiment 15
Prescription (specification: the 10mg/ ball)
Ligustrazine hydrochloride 10g
Macrogol 4000 30g
Stearic acid 2g
Make 1000 altogether
Preparation method:
Weight proportion by each component is weighed, and the heating of Macrogol 4000 and stearic acid is made it fusion, adds the ligustrazine hydrochloride fine powder, and constantly stirring makes whole fusions, puts in the reservoir of drop pill machine, and 90 ℃ of insulations 30 minutes are stand-by.Adjust and drip apart from being 3cm, at the uniform velocity splash in the methyl-silicone oil condensed fluid with 40 droplets/minute the speed of dripping, the temperature on condensed fluid top is 20 ± 2 ℃, and the temperature of bottom is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Embodiment 16
Prescription (specification: the 20mg/ ball)
Ligustrazine phosphate 20g
Polyethylene glycol 6000 2g
Macrogol 4000 20g
Make 1000 altogether
Preparation method:
Weight proportion by each component is weighed, and Polyethylene Glycol heating is made it fusion, adds ligustrazine phosphate, and constantly stirring makes whole fusions, puts in the reservoir of drop pill machine, and 90 ℃ of insulations 30 minutes are stand-by.Adjust and drip apart from being 5cm, at the uniform velocity splash in the liquid paraffin condensed fluid with 30 droplets/minute the speed of dripping, the temperature on condensed fluid top is 20 ± 2 ℃, and the temperature of bottom is 0 ± 1 ℃.Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
Claims (1)
1. ligustrazine drop, it is characterized in that this drop pill made by the ligustrazine of 10g and the Macrogol 4000 of 30g, make 1000 drop pill altogether, the preparation method of this drop pill is: each component is weighed according to described weight, the Macrogol 4000 heating is made it fusion, add the ligustrazine nanorize fine powder of particle diameter＜100nm, constantly stirring makes whole fusions, is 8 * 10 at pressure
7Pa-10 * 10
7Under the Pa, be 5 * 10 in shear rate
7s
-1-2 * 10
8s
-1Under carry out high-pressure homogenization, after the homogenate, place the reservoir of drop pill machine, 85 ℃ the insulation 30 minutes stand-by; Adjust and drip apart from being 4cm, at the uniform velocity splash in the liquid paraffin condensed fluid that contains methyl-silicone oil with 60 droplets/minute the speed of dripping, the temperature of condensed fluid top 20cm is 20 ± 2 ℃, and the temperature of bottom 30cm is 0 ± 1 ℃; Collect drop pill, remove the condensing agent on drop pill surface, drying is selected ball, gets product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100748403A CN100435798C (en) | 2005-06-07 | 2005-06-07 | Preparation of ligustrazine and ligustrazine salt drop pills utilizing nano technology |
Applications Claiming Priority (1)
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| CN101822643B (en) * | 2010-05-21 | 2012-05-23 | 南京中医药大学 | Ligustrazine nanoparticle, preparation method and pharmaceutical application thereof |
| CN102319180A (en) * | 2011-06-28 | 2012-01-18 | 南京中医药大学 | Preparation methods of ligustrazine nanoparticle solution and spraying agent thereof |
| CN102743386B (en) * | 2012-07-05 | 2014-03-26 | 北京正大绿洲医药科技有限公司 | Tetramethylpyrazine and borneol dropping pill for treating ardiovascular and cerebrovascular diseases and preparation method for dropping pill |
| CN103949006B (en) * | 2014-04-15 | 2016-08-17 | 上海市第六人民医院 | A kind of coronary dilatation catheter carrying ligustrazine nanoparticle |
| CN110585152A (en) * | 2019-10-23 | 2019-12-20 | 北京九发药业有限公司 | Large-size ligustrazine phosphate dropping pill |
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| CN1579399A (en) * | 2003-07-31 | 2005-02-16 | 南昌弘益科技有限公司 | Chuanxiongzine or chuanxiongzine salt drip pill and its preparing method |
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| CN1579399A (en) * | 2003-07-31 | 2005-02-16 | 南昌弘益科技有限公司 | Chuanxiongzine or chuanxiongzine salt drip pill and its preparing method |
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| 纳米技术在药学中的研究应用进展. 马国等.国外医药抗生素分册，第25卷第5期. 2004 * |
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