CN115364059A - Cefpodoxime proxetil particles and preparation method thereof - Google Patents

Cefpodoxime proxetil particles and preparation method thereof Download PDF

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CN115364059A
CN115364059A CN202211212895.6A CN202211212895A CN115364059A CN 115364059 A CN115364059 A CN 115364059A CN 202211212895 A CN202211212895 A CN 202211212895A CN 115364059 A CN115364059 A CN 115364059A
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sucrose
cefpodoxime proxetil
coating
particles
cefpodoxime
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CN115364059B (en
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曹晴
胡秀芝
李东
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Beijing Leadingpharm Medicine Development Co ltd
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Abstract

The invention relates to cefpodoxime proxetil particles and a preparation method thereof, and relates to the field of pharmaceutical preparations. The research shows that the stability of the cefpodoxime proxetil particles prepared after the sucrose coating is obviously improved. The finding reason is that the compatibility of the sucrose and the cefpodoxime proxetil bulk drug is poor under the conditions of high temperature and illumination, and the sucrose and the bulk drug are isolated by coating the sucrose with hydroxypropyl cellulose. The prepared sucrose-coated granules are subjected to wet granulation with bulk drugs and other auxiliary materials, wherein the cefpodoxime proxetil and the coated sucrose are not in direct contact in the production process of wet granulation and the storage period of the granules, so that the stability of the cefpodoxime proxetil granules is improved. The test proves that the effect is good.

Description

Cefpodoxime proxetil particles and preparation method thereof
Technical Field
The invention relates to the field of pharmaceutical preparations, and in particular relates to cefpodoxime proxetil particles and a preparation method thereof.
Background
Cefpodoxime Proxetil, having the name Cefpodoxime Proxetil in English and the chemical name (6R, 7R) -3-methoxymethyl-7- [2- (2-amino-4-thiazolyl) -2- [ (Z) -methoxyimino group]Acetylamino group]-8-oxo-5-thia-1-azabicyclo [4.2.0]Oct-2-ene-2-carboxylic acid- (RS) -1- (isopropoxyformyloxy) ethyl ester, formula C 21 H 27 N 5 O 9 S 2 Molecular weight 557.60, structural formula as follows:
Figure BDA0003875654520000011
cefpodoxime proxetil belongs to beta-lactam antibiotics and is suitable for infection caused by sensitive bacteria. The former company is the first three-in-one corporation of japan, the first marketed tablet in 1989 of japan, and the dry syrup in 1991; subsequent French, USA, UK approved for marketing dry suspensions and tablets. The product can be absorbed by intestinal tract after oral administration, and can be converted into active cefpodoxime after deesterification in vivo and enter blood circulation. The traditional Chinese medicine composition is mainly used for treating pneumonia, acute bronchitis, sphagitis, tonsillitis, pyelonephritis, cystitis, gonorrhea urethritis, skin soft tissue infection and the like caused by sensitive bacteria in clinic. The existing preparation forms comprise dispersible tablets, film-coated tablets, capsules, dry suspensions and granules.
The cefpodoxime proxetil bulk drug has poor stability, gradually undergoes double bond transformation under the influence of temperature and humidity, and the side chain part is hydrolyzed, so that the stability of the cefpodoxime proxetil preparation is difficult.
CN 103142506 applied by Tianjin pharmaceutical group Jinkang pharmaceutical Co., ltd discloses cefpodoxime proxetil granules and a preparation method thereof.
The patent CN 108261404 applied by Tianjin Shuangshuo medicine science and technology company Limited discloses a pharmaceutical composition containing cefpodoxime proxetil, and the method avoids factors such as moisture, high temperature and the like through a dry granulation process, and solves the problem of hydrolysis or oxidative degradation of raw material medicines.
The patent CN105963269 applied by Qilu animal health products Limited company discloses cefpodoxime proxetil flavor chewable tablets and a preparation method thereof, and the method adopts
Figure BDA0003875654520000021
Carrying out fluidized bed coating on the particles containing the cefpodoxime proxetil raw material to isolate the cefpodoxime proxetil from the corrigentThe contact achieves the aim of improving the stability of the cefpodoxime proxetil, but because the particles of the cefpodoxime proxetil raw material are coated, the release and the like of the cefpodoxime proxetil raw material are limited, and the bioavailability is influenced.
The patent CN 104771368 applied by Shijiazhuang four-drug Co., ltd discloses a cefpodoxime proxetil quick release and a preparation method thereof, the cefpodoxime proxetil is dissolved in ethanol, the proportion of lactose is increased by wet granulation, and the product stability is improved. In the patent, the weight ratio of anhydrous lactose to sucrose is 6:1. lactose is an excellent filler or diluent, but the price is high, sucrose is often used for replacing lactose in industrial application, and the large-amount use of lactose has no advantage in industrial production, so that the pharmaceutical cost is increased, the competitiveness is reduced, and the burden of patients is increased.
Although the stability of the cefpodoxime proxetil preparation is improved by a dry granulation process, a bulk drug coating process and a wet granulation process after the bulk drug is dissolved in a proper solvent in the prior art, the bulk drug needs to be specially treated or the dry granulation process is adopted in the production process, the production process is more complicated or the used auxiliary materials are high in price and are not suitable for production, so that key factors influencing the stability of the preparation need to be searched, the defects of the prior art are overcome, the proper preparation process is selected for the factors, the stability of the cefpodoxime proxetil preparation is improved, and the dissolution speed of the product is ensured.
Disclosure of Invention
The invention aims to provide cefpodoxime proxetil particles and a preparation method thereof, and solves the problems that raw material medicines need special treatment or have high requirements on equipment, and the production process is complicated.
The cefpodoxime proxetil granule consists of cefpodoxime proxetil as main medicine component, diluent, disintegrating agent, adhesive, surfactant, flow aid, lubricant, corrective, essence, etc.
The cefpodoxime proxetil particles are characterized in that the sucrose coating material is selected from any one of hydroxypropyl cellulose, ethyl cellulose, hydroxypropyl methylcellulose and polyethylene glycol.
The cefpodoxime proxetil granule is characterized in that the sucrose coating accounts for 0.5-15 percent (weight percentage) of the weight of sucrose.
More preferably, the sucrose coating is 0.5 to 2.5 wt% of the sucrose.
Further preparing into granules by the following steps:
the preparation process comprises the following steps:
1) Pulverizing sucrose, and sieving with 60 mesh sieve; weighing other auxiliary materials for later use;
2) Preparing an ethanol solution of hydroxypropyl cellulose for coating;
3) And (3) coating sucrose: adding sucrose in a formula amount into a fluidized bed, and coating with a hydroxypropyl cellulose ethanol solution;
4) And (3) wet granulation: carrying out wet granulation, drying and granule finishing on cefpodoxime proxetil, coated sucrose, a diluent, a disintegrating agent, an adhesive, a surfactant, a flavoring agent and the like;
5) Total mixing: and adding a flow aid, a lubricant and essence into the dry granules for total mixing to prepare the cefpodoxime proxetil granules.
In the cefpodoxime proxetil particles, sucrose is coated by hydroxypropyl cellulose, and the weight gain of the coating is 0.5-2.5%.
The diluent is lactose;
the disintegrant is carboxymethylcellulose calcium;
the adhesive is sodium carboxymethyl cellulose;
the surfactant is sorbitan trioleate;
the glidant is silicon dioxide;
the lubricant is talcum powder;
the flavoring agent is citric acid, aspartame, sodium chloride and sodium glutamate;
the essence is banana essence.
The cefpodoxime proxetil granule unit preparation formula composition is shown in the following table 1:
table 1 shows the unit formulation of cefpodoxime proxetil particles
Figure BDA0003875654520000031
Further illustrating, the formulation composition of the cefpodoxime proxetil particle unit formulation is shown in table 2 below:
table 2 shows the compositions of the formulations 1 to 5
Figure BDA0003875654520000041
The preparation process comprises the following steps:
1) Pulverizing sucrose, citric acid and sodium glutamate, and sieving with 60 mesh sieve; weighing other auxiliary materials for later use;
2) Preparing an ethanol solution of hydroxypropyl cellulose for coating;
3) And (3) coating with cane sugar: adding sucrose in a formula amount into a fluidized bed, and coating with a hydroxypropyl cellulose ethanol solution;
4) And (3) wet granulation: wet granulating, drying and finishing cefpodoxime proxetil, coated sucrose, lactose, carboxymethylcellulose calcium, carboxymethylcellulose sodium, hydroxypropylcellulose, citric acid, aspartame, sodium chloride, sodium glutamate and yellow ferric oxide;
5) Total mixing: and adding silicon dioxide, talcum powder and banana essence into the dry particles to carry out total mixing to prepare the cefpodoxime proxetil particles.
Further preferred mode:
the preparation process comprises the following steps:
1) Pulverizing sucrose, citric acid and sodium glutamate, and sieving with 60 mesh sieve; weighing other auxiliary materials for later use;
2) Preparing 75% ethanol solution with hydroxypropyl cellulose concentration of 1.5%, stirring to dissolve, and coating;
3) And (3) coating with cane sugar: adding sucrose in a formula amount into a fluidized bed, and coating with a hydroxypropyl cellulose ethanol solution;
the air inlet temperature is set to be 35-50 ℃, and the air inlet volume is 25-40 m 3 The sucrose coating is carried out at the atomization pressure of 1.5-3.0 MPa and the liquid supply speed of 3.5-7 r/min. After the coating is finished, drying the coating by a fluidized bed until the moisture content is below 3.0 percent, and taking out the coating for later use.
4) And (3) wet granulation: adding cefpodoxime proxetil, coated sucrose, lactose, carboxymethylcellulose calcium, carboxymethylcellulose sodium, hydroxypropylcellulose, citric acid, aspartame, sodium chloride, sodium glutamate and yellow ferric oxide into a wet granulating machine, stirring for 180 r/min, and shearing for 120 r/min to perform wet granulation; the wet granulate was dried to <3.0%.
5) Total mixing: and adding silicon dioxide, talcum powder and banana essence into the dry particles to carry out total mixing to prepare the cefpodoxime proxetil particles.
Further preferred mode:
wherein: when the sucrose is coated with hydroxypropyl cellulose in the step 3), the coating accounts for 0.5-15% of the weight of the sucrose.
The sucrose coating uses 75-95% ethanol solution with hydroxypropyl cellulose concentration of 0.5-5% weight volume ratio.
And 3) drying the coated sucrose until the moisture content is less than 3.0%.
And 4) drying the wet-granulated particles until the moisture content is below 3.0%.
The present patent application is further illustrated by the following experiments:
a series of experiments prove that sucrose is firstly subjected to film coating by hydroxypropyl cellulose, and the prepared sucrose-coated granules are then subjected to wet granulation with bulk drugs and other auxiliary materials, wherein cefpodoxime proxetil and coated sucrose are not directly contacted in the production process of wet granulation and the storage period of the granules, so that the stability of the cefpodoxime proxetil granules can be improved, and the granules are bitter-free and quick-release granules.
Experiment one: compatibility test of raw materials and auxiliary materials
Because the auxiliary materials are more in the product, the auxiliary materials are grouped, the raw material medicines are respectively and uniformly mixed with each group of auxiliary materials, and then the raw material medicines are respectively placed in a culture dish to be spread into thin layers with the thickness of less than 5 mm. The specific grouping of the excipients is shown in table 3 below.
TABLE 3 grouping of adjuvants
Figure BDA0003875654520000051
Figure BDA0003875654520000061
Note: the dosage of the auxiliary materials is the same as the dosage corresponding to the table 1
The cefpodoxime proxetil bulk drug and filler sucrose, lactose or total mixed auxiliary materials according to the weight ratio of 1: 5; mixing the cefpodoxime proxetil raw material medicine with the auxiliary material 3 or the auxiliary material 4 according to the weight ratio of 20:1, and uniformly mixing; sample numbers are shown in the following table; each sample was spread in a thin layer < 5mm thick in a petri dish.
TABLE 4 grouping of excipients
Figure BDA0003875654520000062
The samples were allowed to stand at high temperature (60 ℃ C. + -2 ℃ C.) and under light (4500 lx. + -. 500 lx) for 30 days, and samples were taken on days 10 and 30 to determine the substances. The test data are shown in the following table.
TABLE 5 compatibility test results (60 ℃. + -. 2 ℃) of cefpodoxime proxetil raw material drug and auxiliary materials
Figure BDA0003875654520000063
TABLE 6 compatibility test results (illumination (4500 lx +/-500 lx))
Figure BDA0003875654520000064
Figure BDA0003875654520000071
Note: N.D.: it was not detected.
The experimental results show that the cefpodoxime proxetil bulk drug has poor stability under the conditions of high temperature (60 +/-2 ℃) and illumination (4500 lx +/-500 lx); the bulk drug and the sucrose (sample 1) are placed for 10 days and 30 days under the conditions of high temperature and illumination, and the increase range of impurities C + B-II + D-I and total impurities is larger than that of the bulk drug (sample 6); the crude drug and other auxiliary materials (samples 2-4) are placed for 10 days and 30 days under the conditions of high temperature and illumination, and the increment of impurities C + B-II + D-I and total impurities is lower than that of the crude drug of cefpodoxime proxetil; the total auxiliary material and cefpodoxime proxetil (sample 5) contain sucrose, so that the increase range of impurities C + B-II + D-I and total impurities is larger than that of other auxiliary materials (samples 2-4), the stability is reduced due to the existence of sucrose, but the total auxiliary materials also have a protective effect on the bulk drugs, and the total auxiliary materials are slightly lower than the impurities of the raw materials. Wherein the impurity B is a process impurity, the impurity C is a thermal degradation impurity, and the impurity D is a photodegradation impurity; in conclusion, sucrose is the key auxiliary material affecting the stability of cefpodoxime proxetil bulk drug in the formula.
Note: the structural formula of the impurities is as follows:
Figure BDA0003875654520000072
impurity D
Figure BDA0003875654520000081
Experiment two: compatibility test of raw materials and auxiliary materials
The extraction raw materials of sucrose are two types: sugar cane, sugar beet; there are two processes for preparing sucrose: sulfurization (sulfur dioxide decolorization), carbonization (activated carbon decolorization). Wherein the sucrose extracted from sugarcane has better properties and purity; the sucrose prepared by the carbonization process has slightly low impurity. In conclusion, the compatibility of sucrose and cefpodoxime proxetil bulk drug produced by two preparation processes of sulfuration and carbonization from sugarcane extraction is investigated.
Mixing cefpodoxime proxetil raw material medicine, filler sucrose and total mixed auxiliary materials according to the weight ratio of 1: 5; mixing uniformly; sample numbers are shown in the following table; each sample was spread in a thin layer < 5mm thick in a petri dish.
TABLE 7 respective groups of samples containing corresponding adjuvants
Serial number Name of raw and auxiliary materials
Sample 1 Cefpodoxime proxetil + sucrose (Carborundum)
Sample 2 Cefpodoxime proxetil + sucrose (sulfurized)
Sample 3 Cefpodoxime proxetil + total mixed auxiliary material (carbonization)
Sample 4 Cefpodoxime proxetil + mixed auxiliary material (vulcanization)
Sample 5 Cefpodoxime proxetil
Sample 6 Total mixed auxiliary material (carbonization)
Sample 7 Total mixed auxiliary material (vulcanization)
The samples were allowed to stand at high temperature (60 ℃ C. + -2 ℃ C.) and under light (4500 lx. + -. 500 lx) for 30 days, and samples were taken on days 10 and 30 to determine the substances. The test data are shown in the following table.
TABLE 8 compatibility test results (60 ℃. + -. 2 ℃) of cefpodoxime proxetil raw material drug and auxiliary materials
Figure BDA0003875654520000082
Figure BDA0003875654520000091
TABLE 9 compatibility test results (illumination (4500 lx +/-500 lx))
Figure BDA0003875654520000092
Note: N.D.: it was not detected.
From the experimental results, the raw material medicines and the cane sugar prepared by the two preparation processes are placed for 10 days and 30 days under the conditions of high temperature and illumination, the increase amplitudes of the impurities C + B-II + D-I and the total impurities are basically consistent and are both larger than those of the raw material medicines; the results show that the sucrose prepared by different preparation processes has basically the same influence on the stability of the bulk drug, so the problem of compatibility of the two needs to be solved from the process perspective.
Has the advantages that:
the inventor has found through intensive research that the stability of cefpodoxime proxetil particles prepared after sucrose coating is obviously improved, and meanwhile, the dissolution meets the requirement.
Specifically, the method comprises the following steps:
the inventors have discovered, by chance and after numerous experiments, that only the bulking agent sucrose is mixed with cefpodoxime proxetil, namely: after the sucrose is directly contacted with the bulk drug, the mixture is placed for 30 days under the conditions of high temperature (60 +/-2 ℃) or illumination (4500 +/-500 lx), and the increase range of the impurities C + B-II + D-I and the total impurities is larger than that of the bulk drug, wherein the impurity B is a process impurity, the impurity C is a thermal degradation impurity, and the impurity D is a photo degradation impurity, which indicates that the sucrose is a key factor influencing the stability of cefpodoxime proxetil.
The original drug of the study (oreloc) was sucrose and lactose (about 20 weight ratio 1), both of which served as diluents, with lactose being a minor component. CN 104771368 aims at solving the problem that the preparation is low in dissolution when dissolved in water. The cefpodoxime proxetil and the surfactant are uniformly dispersed on the surface and inside the particles after granulation and drying, when the medicinal preparation is added into an aqueous dissolution medium, the water-soluble auxiliary material and part of cefpodoxime proxetil are quickly dissolved, the surfactant can be quickly distributed on the surface of the residual undissolved medicament, a specific hydrophilic group of the surfactant extends outwards to combine with water molecules, a hydrophobic group surrounds the surface of the cefpodoxime proxetil, and the medicament molecules are separated one by one, so that the tendency of gelation of the medicament can be effectively avoided, and the dissolution of the cefpodoxime proxetil is accelerated. The experimental results mainly examine the influence of the surfactant. Because the prescription is added with the surfactant, the sucrose and the lactose of the original medicine cannot be diluted well, and particularly, the sucrose and the lactose are difficult to granulate under the condition of large sucrose amount, so the weight ratio of the sucrose to the lactose is changed to 6:1 as a diluent. Thus, although either the original drug or CN 104771368 includes sucrose and lactose, neither of them describes the effect of sucrose on stability, nor has any technical implication.
The sucrose is coated by using a proper coating material and process, and the coated sucrose can be isolated from the bulk drugs so as to achieve the purpose of improving the stability of cefpodoxime proxetil particles. Specifically, the method comprises the following steps: according to the preparation method, sucrose is firstly subjected to film coating by using hydroxypropyl cellulose, and the prepared sucrose coated particles are subjected to wet granulation with raw material medicines and other auxiliary materials, wherein the cefpodoxime proxetil and the coated sucrose are not in direct contact in the production process of wet granulation and the storage period of the particles, so that the purpose of improving the stability of the cefpodoxime proxetil particles is achieved.
Detailed Description
The advantageous effects of the present invention are further illustrated by the following experiments. It is not limited to the following embodiments, and those skilled in the art can make equivalents and changes without departing from the spirit of the invention.
EXAMPLE 1 preparation of cefpodoxime proxetil particles (recipes 1-3)
The composition of the cefpodoxime proxetil particle unit preparation formula is shown as the following table:
TABLE 10 formulations 1-3
Figure BDA0003875654520000101
Figure BDA0003875654520000111
The preparation process comprises the following steps:
1) Pulverizing sucrose, citric acid and sodium glutamate, and sieving with 60 mesh sieve; weighing other auxiliary materials for later use;
2) Preparing 75% ethanol solution with hydroxypropyl cellulose concentration of 1.5%, stirring to dissolve, and coating;
3) And (3) coating with cane sugar: adding sucrose in a formula amount into a fluidized bed, and coating with a hydroxypropyl cellulose ethanol solution;
the air inlet temperature is set to be 35-50 ℃, and the air inlet volume is 25-40 m 3 The sucrose coating is carried out at the atomization pressure of 1.5-3.0 MPa and the liquid supply speed of 3.5-7 r/min. After the coating is finished, drying the coating by a fluidized bed until the moisture content is below 3.0 percent, and taking out the coating for later use.
4) And (3) wet granulation: adding cefpodoxime proxetil, coated sucrose, lactose, carboxymethylcellulose calcium, carboxymethylcellulose sodium, hydroxypropylcellulose, citric acid, aspartame, sodium chloride, sodium glutamate and yellow ferric oxide into a wet granulator, stirring for 180 r/min, and shearing for 120 r/min to perform wet granulation; the wet granulate was dried to <3.0%.
5) Total mixing: and adding silicon dioxide, talcum powder and banana essence into the dry particles to carry out total mixing to prepare the cefpodoxime proxetil particles.
EXAMPLE 2 preparation of cefpodoxime proxetil particles (recipes 4-5)
TABLE 11 formulations 4-5
Figure BDA0003875654520000112
Figure BDA0003875654520000121
The preparation process comprises the following steps:
1) Pulverizing sucrose, citric acid and sodium glutamate, and sieving with 60 mesh sieve; weighing other auxiliary materials for later use;
2) Preparing 75% ethanol solution with hydroxypropyl cellulose concentration of 1.5%, stirring to dissolve, and coating;
3) And (3) coating with cane sugar: adding sucrose in the formula amount into a fluidized bed, and coating with hydroxypropyl cellulose ethanol solution;
the air inlet temperature is set to be 35-50 ℃, and the air inlet volume is 25-40 m 3 The sucrose coating is carried out at the atomizing pressure of 1.5 to 3.0MPa and the liquid supply speed of 3.5 to 7 r/min. After coating, drying the coating by a fluidized bed until the water content is below 3.0 percent, and taking out for later use.
4) And (3) wet granulation: adding cefpodoxime proxetil, coated sucrose, lactose, carboxymethylcellulose calcium, carboxymethylcellulose sodium, hydroxypropylcellulose, citric acid, aspartame, sodium chloride, sodium glutamate and yellow ferric oxide into a wet granulating machine, stirring for 180 r/min, and shearing for 120 r/min to perform wet granulation; the wet granulate was dried to <3.0%.
5) Total mixing: and adding silicon dioxide, talcum powder and banana essence into the dry particles for total mixing to prepare the cefpodoxime proxetil particles.
Comparative example 1 (sucrose without hydroxypropylcellulose coating)
The sucrose uncoated comparative example was prepared according to the same formulation as in formulation example 1, and the preparation process was as follows:
1) Pulverizing sucrose, citric acid and sodium glutamate, and sieving with 60 mesh sieve; weighing other auxiliary materials for later use;
2) And (3) wet granulation: carrying out wet granulation, drying and granule finishing on cefpodoxime proxetil, sucrose, lactose, carboxymethylcellulose calcium, carboxymethylcellulose sodium, hydroxypropylcellulose, citric acid, aspartame, sodium chloride, sodium glutamate and yellow ferric oxide;
3) Total mixing: and adding silicon dioxide, talcum powder and banana essence into the dry particles to carry out total mixing to prepare the cefpodoxime proxetil particles.
Comparative example 2 preparation of CN 104771368
Table 12 recipe of CN 104771368
Name of raw and auxiliary materials Prescription
Cefpodoxime proxetil 135g
Anhydrous lactose 1400g
Sucrose 240g
Calcium carboxymethylcellulose 45g
Xanthan gum 10g
Citric acid 5g
Polyoxyethylene hydrogenated castor oil 135g
Anhydrous ethanol 600ml
Talcum powder 20g
Orange essence 10g
The preparation process comprises the following steps:
1) Dissolving the cefpodoxime proxetil and polyoxyethylene hydrogenated castor oil in the anhydrous ethanol according to the prescription amount to obtain a first mixture;
2) Uniformly mixing anhydrous lactose, sucrose and calcium carboxymethylcellulose in a fluidized bed, slowly spraying the mixture I, granulating, and drying at 30 ℃ in the fluidized bed to obtain a mixture II;
3) And adding xanthan gum, citric acid, talcum powder and orange essence into the mixture II, mixing and subpackaging.
Example 3: taste detection
5 samples of the prescription 1, the prescription 2, the prescription 3, the comparative example and the reference drug (cefpodoxime proxetil dry suspension, trade name: ORELOX, the carrier: SANOFI-AVENTIS FRANCE) are respectively taken for 6 unit doses, the samples are respectively dispersed in water at a proper room temperature, 6 volunteers are asked to hold the samples for 20s, the taking process of the drugs is simulated, and the taste detection results are shown in the following table:
TABLE 13 oral sensation test results of prescription example, control example and control drug
Figure BDA0003875654520000131
According to the taste detection results, the flavoring agents selected in the prescription examples and the comparative examples can effectively cover the bitter taste of cefpodoxime proxetil, and the taste is equivalent to that of a reference medicament.
Example 4: dissolution test
In the above formula 1, formula 2, formula 3, comparative example, and control drug (cefpodoxime proxetil dry suspension, trade name: ORELOX, support company: SANOFI-AVENTIS FRANCE), 5 samples were taken, and 6 unit dosage was measured according to the dissolution and release determination method (second method of 0931, general rules) in the second part of the Chinese pharmacopoeia, namely, in the term of cefpodoxime proxetil dry suspension. Glycine-sodium chloride-hydrochloric acid solution (pH 3.0) [ 54.5g glycine and 42.6g sodium chloride were taken and placed in a 1000ml measuring flask, 500ml water was added to dissolve, 14.2ml hydrochloric acid was slowly added, cooling was allowed to stand, diluted to the mark with water, shaken up to a stock solution. Taking 50ml of stock solution, adding water to 900ml (adjusting pH to 3.0 + -0.1 with 10mol/L sodium hydroxide solution if necessary) 900ml as dissolution medium, rotating at 75 rpm, and sampling at 45min according to the method. Taking a proper amount of the dissolution liquid, filtering, precisely taking a proper amount of the subsequent filtrate, and quantitatively diluting with a dissolution medium to prepare a solution containing about 11 mu g of cefpodoxime in each 1 ml. Taking a proper amount of cefpodoxime proxetil as a reference substance, precisely weighing, adding a proper amount of methanol for dissolving, and quantitatively diluting with a dissolution medium to prepare a solution containing about 11 mu g of cefpodoxime in each 1 ml. Taking the test solution and the reference solution, respectively measuring absorbance at 259nm wavelength by ultraviolet-visible spectrophotometry (general formula 0401), and calculating the elution amount of each bag. The test data are shown in the following table.
Table 14 prescription example, control example, and test results of dissolution of control drug (unit:%)
Sample (I) Prescription 1 Prescription 2 Prescription 3 Comparative example 1 Comparative example 2 Contrast drug
Sample No. 1 98.4 97.6 98.2 97.5 98.0 97.5
Sample 2 96.1 97.2 96.8 98.7 96.6 95.6
Sample 3 95.7 96.1 98.1 98.5 97.4 99.5
Sample 4 96.3 96.7 96.8 97.6 96.8 98.4
Sample No. 5 95.2 96.8 97.8 97.8 97.1 96.7
Sample No. 6 97.1 98.5 97.7 98.1 97.9 98.5
Mean value of 96.5 97.2 97.6 98.0 97.3 97.7
RSD 1.18 0.86 0.64 0.50 0.59 1.43
From the dissolution rate test results, the dissolution rates of the 3 sucrose-coated weight-increased samples of the invention are basically consistent at 45min and all meet the requirements (70% of the marked amount) compared with the comparative example and the control drug.
Example 5: stability test results
5 samples of the above-mentioned formulation 1, formulation 2, formulation 3, comparative example and control drug (cefpodoxime proxetil dry suspension, trade name: ORELOX, carrier: SANOFI-AVENTIS FRANCE) were placed under accelerated conditions of 40 ℃. + -. 2 ℃ and 75%. + -. 5% relative humidity for 6 months, and samples were taken to measure the relevant substances, and the measurement data are shown in the following table.
TABLE 15 recipe examples, control examples, and test results of substances related to control drugs (unit:%)
Figure BDA0003875654520000151
According to the detection results of the related substances, the 3 sucrose-coated weight-gaining samples in the invention are placed for 6 months under the accelerated conditions of 40 ℃ plus or minus 2 ℃ and 75% plus or minus 5% of relative humidity, and impurities C + B-II + D-I and total impurities slowly increase and are in accordance with the regulations and equivalent to the control drugs. The sucrose uncoated comparative example was found to have the impurity C + B-II + D-I approaching the limit (4.0%) when left under the above accelerated conditions for 3 months, and the impurity C + B-II + D-I exceeded the limit (4.0%) when left for 6 months. By adopting the sucrose coating process, sucrose is isolated from the bulk drug, so that the stability can be obviously improved, and the stability of cefpodoxime proxetil granules is equivalent to that of a reference drug; the mouth feel and the dissolution rate are consistent with those of a contrast medicine, so that the invention has outstanding substantive characteristics and remarkable progress and has practicability.

Claims (10)

1. A cefpodoxime proxetil granule comprises cefpodoxime proxetil as main ingredient, diluent, disintegrating agent, adhesive, surfactant, glidant, lubricant, correctant and essence; the preparation is characterized in that the diluent is sucrose and lactose, wherein the sucrose is coated sucrose.
2. The cefpodoxime proxetil granulate according to claim 1 wherein the sucrose coating material is selected from any one of hydroxypropyl cellulose, ethyl cellulose, hypromellose, polyethylene glycol.
3. A cefpodoxime proxetil granulate according to claim 2 wherein the sucrose coating comprises 0.5 to 15% by weight of sucrose.
4. A cefpodoxime proxetil granulate according to claim 3 wherein the sucrose coating comprises 0.5% to 2.5% by weight of sucrose.
5. The cefpodoxime proxetil particles of claim 4 wherein the sucrose coating material is hydroxypropylcellulose and the unit formulation is as follows:
Figure FDA0003875654510000011
6. cefpodoxime proxetil particles according to claim 5, obtained by the following preparation steps:
1) Pulverizing sucrose, citric acid and sodium glutamate, and sieving with 60 mesh sieve; weighing other auxiliary materials for later use;
2) Preparing an ethanol solution of hydroxypropyl cellulose for coating;
3) And (3) coating sucrose: adding sucrose in a formula amount into a fluidized bed, and coating with a hydroxypropyl cellulose ethanol solution;
4) And (3) wet granulation: wet granulating, drying and finishing cefpodoxime proxetil, coated sucrose, lactose, carboxymethylcellulose calcium, carboxymethylcellulose sodium, hydroxypropylcellulose, citric acid, aspartame, sodium chloride, sodium glutamate and yellow ferric oxide;
5) Total mixing: and adding silicon dioxide, talcum powder and banana essence into the dry particles for total mixing to prepare the cefpodoxime proxetil particles.
7. The method for preparing cefpodoxime proxetil particles according to claim 6 wherein the sucrose in step 3) is coated with hydroxypropylcellulose in an amount of 0.5-15% by weight of sucrose.
8. The method for preparing cefpodoxime proxetil particles according to claim 6 wherein the sucrose coating uses a 75-95% ethanol solution with a hydroxypropyl cellulose concentration of 0.5-5% w/v.
9. The method for preparing cefpodoxime proxetil particles according to claim 6 wherein the sucrose coating of step 3) is dried to a moisture content of less than 3.0%.
10. The method for preparing cefpodoxime proxetil particles according to claim 6 wherein the wet granulated particles of step 4) are dried to a moisture content of less than 3.0%.
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Publication number Priority date Publication date Assignee Title
CN104174023A (en) * 2014-08-15 2014-12-03 河北菲尼斯生物技术有限公司 Pharmaceutical composition capable of improving stability of ambroxol hydrochloride

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104174023A (en) * 2014-08-15 2014-12-03 河北菲尼斯生物技术有限公司 Pharmaceutical composition capable of improving stability of ambroxol hydrochloride

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