A kind of pharmaceutical composition that contains Fenofibric Acid
Technical field
The invention belongs to medical technical field, be specifically related to the preparation method of a kind of pharmaceutical composition that contains Fenofibric Acid and tablet thereof.
Background technology
Fenofibric Acid (English name FenofibricAcid), its chemical name is: 2-[4-(4-chlorobenzene formacyl) phenoxy group]-2 Methylpropionic acid. Molecular formula: C17H15ClO4, molecular weight: 318.75, its structural formula is as follows:
Fenofibric Acid is second generation fibrate drug, be used for the treatment of hypercholesterolemia and hypertriglyceridemia, metabolite and the active ingredient of fenofibrate in human body, there is high solubility in small intestine district, therefore, it is compared fenofibrate and has better bioavilability, and the impact of bioavilability unable to take food thing.
Chinese patent CN102172347A discloses a kind of preparation technology of Fenofibric Acid enteric-soluble controlled-release capsule, by pelletizing press sheet is formed to microplate, each microplate diameter 3mm, and then enteric coated on microplate, again the microplate after dressing is incapsulated, make enteric-soluble controlled-release capsule. But, adopt microplate technique also need to after prepare by microplate, it further be processed and record into capsule to facilitate patient to take, and need to use special mould and sheeting equipment, the lower and length consuming time of production efficiency.
Chinese patent CN101780049A discloses a kind of preparation method of Fenofibric Acid enteric coated preparations, wraps up Fenofibric Acid active component on micropill, and then wraps barrier gown and enteric layer, makes enteric supensoid agent. But, adopt micropill technique to need spray packaging technique at the bottom of fluid bed, dressing repeatedly on micropill, long processing time, made supensoid agent is unfavorable for that patient takes, dosage is wayward.
Above data is not all mentioned acceptable salt conventional tablet and preparation method thereof on Fenofibric Acid and physiology thereof. Although and employing wet granulation technology can improve dissolution rate, related substance is higher. Therefore, preparing a kind of common Fenofibric Acid sheet, and have that related substance is few, stripping is complete, stay-in-grade feature, to ensure stable, the safety of clinical drug effect, is to need those skilled in the art to put forth effort the technical problem solving.
Summary of the invention
For these reasons, applicant finds a kind of new Fenofibric Acid pharmaceutical composition through research, contains antierythrite and methylcellulose in this pharmaceutical composition, is ensureing on the basis of stripping, for the impurity spectrum stability that promotes Fenofibric Acid.
The object of this invention is to provide a kind of new pharmaceutical composition that contains Fenofibric Acid, said composition is prepared into preparation, has advantages of that dissolution rate is good, impurity is composed stable.
Another object of the present invention is to provide a kind of preparation method of the pharmaceutical composition that contains Fenofibric Acid, and the method is applicable to industrial production.
Particularly, the invention provides:
A pharmaceutical composition that contains Fenofibric Acid, contains: Fenofibric Acid, lubricant, methylcellulose and antierythrite.
The described pharmaceutical composition that contains Fenofibric Acid is tablet.
The weight ratio of described methylcellulose and antierythrite is (2 ~ 2.3): 1.
The described pharmaceutical composition that contains Fenofibric Acid, the weight ratio of each component is:
Fenofibric Acid 1 ~ 4 weight portion
Methylcellulose 3 ~ 8 weight portions
Antierythrite 1 ~ 5 weight portion
Filler 30 ~ 60 weight portions
Lubricant 1 ~ 5 weight portion.
Described filler is selected from one or more in starch, lactose, Icing Sugar, sweet mellow wine, microcrystalline cellulose, pregelatinized starch.
Described lubricant is selected from one or more in superfine silica gel powder, talcum powder, dolomol.
The described pharmaceutical composition that contains Fenofibric Acid is prepared into tablet, its preparation method comprises the following steps: Fenofibric Acid, methylcellulose, antierythrite, filler, lubricant are sieved respectively, mixed, sieve, mix, compressing tablet obtains Fenofibric Acid tablet.
The present invention compared with prior art has the following advantages and good effect:
1, product stability of the present invention is good, and stripping is complete.
2, operation is simple for production of the present invention, is suitable for industrial production.
Detailed description of the invention
Below the invention will be further described for the description by detailed description of the invention, but this is not limitation of the present invention, those skilled in the art are according to basic thought of the present invention, can make various amendments or improvement, but only otherwise depart from basic thought of the present invention, all within the scope of the present invention.
Test method
Dissolution rate is got this product, according to dissolution method (two annex XC the second methods of Chinese pharmacopoeia version in 2010), (gets 0.2mol/L potassium dihydrogen phosphate 250ml with pH6.8 phosphate buffer, add 0.2mol/L sodium hydroxide solution 112ml, being diluted with water to 1000ml, shaking up, to obtain final product) 900ml is dissolution medium, rotating speed is per minute 75 to turn, operation, in the time of 15 minutes, gets solution 10ml in accordance with the law, filter, filtrate is as need testing solution; Separately get the about 10mg of Fenofibric Acid reference substance, accurately weighed, put in brown measuring bottle, add pH6.8 phosphate buffer and dissolve and dilute the solution of making in every 1ml containing 0.04mg, shake up, in contrast product solution. Taking water (with phosphorus acid for adjusting pH value to 2.5) ,-acetonitrile (50:50) is as mobile phase, and detection wavelength is 286nm. Precision measures need testing solution and each 10 μ 1 of reference substance solution, and injection liquid chromatography, records chromatogram respectively. Stripping quantity by external standard method with every of calculated by peak area.
Related substance is got fine powder appropriate (being approximately equivalent to Fenofibric Acid 50mg) under this product assay item, accurately weighed, put in the brown measuring bottle of 100ml, solubilizer ((with phosphorus acid for adjusting pH value to 2.5)-acetonitrile (30:70)) is appropriate, ultrasonic (or jolting) makes to dissolve for 10 minutes, with solvent dilution, to scale, centrifugal (or filtration) gets supernatant (or subsequent filtrate) as need testing solution; Precision measures in right amount, makes the solution that approximately contains 1 μ g in every 1ml, solution in contrast with solvent dilution; Get need testing solution appropriate, add impurity IV by 0.1%, mix, get this solution illumination 5~10 minutes, as system suitability solution. Measure according to high performance liquid chromatography (two annex V D of Chinese pharmacopoeia version in 2010), using octadecylsilane chemically bonded silica (recommending TC-C18,5 μ m, 4.6 × 250mm) is filler; Taking water (with phosphorus acid for adjusting pH value to 2.5), as mobile phase A, acetonitrile is Mobile phase B, and according to the form below carries out linear gradient elution; Detection wavelength is 286nm. Get system suitability solution 10 μ l injection liquid chromatographies, record chromatogram, the retention time at Fenofibric Acid peak is about 16~18 minutes, and the separating degree at Fenofibric Acid peak and impurity II peak (relative retention time is about 0.9), impurity III peak (relative retention time is about 2.36) and impurity IV peak (relative retention time is about 2.42) should meet the requirements. Get contrast solution 10 μ l, injection liquid chromatography, regulates detection sensitivity, makes the peak height of principal component chromatographic peak be about 10% of full scale; Precision measures need testing solution and the each 10 μ l of contrast solution again, and injection liquid chromatography, records chromatogram respectively.
Impurity I (RRT=0.65)
The chloro-4` dihydroxy benaophenonel of Chinese: 4-
English name: 4-Chloro-4'-hydroxybenzophenone
Impurity II (RRT=0.9)
Chinese: (4-chlorphenyl) [4-(2-hydroxypropyl-2-yl) phenyl] ketone
English name: (4-chlorophenyl) (4-(2-hydroxypropan-2-yl) phenyl) methanone
Impurity III (RRT=2.36)
Chinese: 2-[4-(4-chlorphenyl) phenoxy group]-2 Methylpropionic acid ethyl ester
English name: Ethyl2-[4-(4-chlorobenzoyl) phenoxy]-2-methylpropanoate
Impurity IV (RRT=2.42)
Chinese: (4-chlorphenyl) [4-(1-methoxyl group) phenyl]-ketone
English name: (4-chlorobenzoyl) [4-(1-methylthoxy) phenyl]-methanone
Assay is measured according to high effective liquid chromatography for measuring (two annex V D of Chinese pharmacopoeia version in 2010).
Chromatographic condition and system suitability are with being filler with octadecylsilane chemically bonded silica; Taking water (with phosphorus acid for adjusting pH value to 2.5) ,-acetonitrile (50:50) is as mobile phase, and detection wavelength is 286nm. Get this product fine powder appropriate (being approximately equivalent to Fenofibric Acid 10mg), put in 100ml measuring bottle, solubilizer dissolves and is diluted to scale, shake up, illumination 5~10 minutes, precision measures 10 μ l injection liquid chromatographies, and number of theoretical plate calculates and is not less than 3000 by Fenofibric Acid peak, and the separating degree of Fenofibric Acid peak and adjacent impurity peaks should meet the requirements.
Determination method is got 20 of this product, accurately weighed, porphyrize, precision takes in right amount (being approximately equivalent to Fenofibric Acid 10mg), puts in the brown measuring bottle of 100ml, and solubilizer (water (with phosphorus acid for adjusting pH value to 2.5)-acetonitrile (30:70)) is appropriate, ultrasonic (or jolting) makes to dissolve and be diluted to scale for 10 minutes, shake up, centrifugal (or filtration), gets supernatant (or subsequent filtrate) 10 μ 1 and measures according to chromatographic condition under Fenofibric Acid assay item; Separately get the about 10mg of Fenofibric Acid reference substance, accurately weighed, to put in the brown measuring bottle of 100ml, solubilizer dissolves and is diluted to scale, shakes up, and is measured in the same method. , to obtain final product with calculated by peak area by external standard method.
Test example 1: prescription screening test
Get respectively Fenofibric Acid 3g(content 99.9%, always assorted 0.09%), starch 35g, superfine silica gel powder 1.8g, make the tablet that contains Fenofibric Acid by following prescription, detect related substance and dissolution rate, the results are shown in Table 2:
Table 1 prescription screening
Table 2 related substance result of the test
Result of the test shows: Fenofibric Acid and methylcellulose are dissolved in to related substance and the dissolution rate that antierythrite makes and are better than additive method.
Test example 2: influence factor test
Get embodiment 3,5,6,8 products and carry out influence factor test, the results are shown in Table 3.
Table 3 influence factor test data
Conclusion: road as seen from the above table, the product of preparing by the inventive method, the stability under high temperature and illumination is better than comparative example.
Test example 3: accelerated test
Get embodiment 5,6,8 products and carry out accelerated test, the results are shown in Table 4.
Table 4 accelerated test data
Packaging: commercially available back, investigation condition: 40 DEG C of temperature, humidity 75%
Conclusion: road as seen from the above table, the product of preparing by the inventive method, the stability under high temperature and illumination is better than comparative example.
Preparation example
Embodiment 1
Prescription
Fenofibric Acid 1.0g
Methylcellulose 7.2g
Antierythrite 3.6g
Starch 35g
Superfine silica gel powder 1.8g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, starch, superfine silica gel powder are sieved respectively, mixed, sieve, mix, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 2
Prescription
Fenofibric Acid 1.5g
Methylcellulose 4.5g
Antierythrite 2.0g
Lactose 38g
Talcum powder 2.8g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, lactose, talcum powder are sieved respectively, mixed, sieve, mix, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 3
Prescription
Fenofibric Acid 2.0g
Methylcellulose 6.2g
Antierythrite 2.8g
Icing Sugar 45g
Superfine silica gel powder 2.5g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, Icing Sugar, superfine silica gel powder are sieved respectively, mixed, cross 20 mesh sieves, mix 20 minutes, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 4
Prescription
Fenofibric Acid 2.5g
Methylcellulose 7.5g
Antierythrite 3.6g
Sweet mellow wine 54g
Dolomol 2.5g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, sweet mellow wine, dolomol are sieved respectively, mixed, cross 20 mesh sieves, mix 20 minutes, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 5
Prescription
Fenofibric Acid 3.0g
Methylcellulose 6.8g
Antierythrite 3.2g
Microcrystalline cellulose 37g
Superfine silica gel powder 1.2g
Dolomol 0.5g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, microcrystalline cellulose, superfine silica gel powder and dolomol are sieved respectively, mixed, cross 20 mesh sieves, mix 20 minutes, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 6
Prescription
Fenofibric Acid 3.5g
Methylcellulose 5.0g
Antierythrite 1.8g
Microcrystalline cellulose 85g
Talcum powder 0.8g
Dolomol 0.5g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, microcrystalline cellulose, talcum powder, dolomol are sieved respectively, mixed, cross 20 mesh sieves, mix 20 minutes, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 7
Prescription
Fenofibric Acid 4.0g
Methylcellulose 3.0g
Antierythrite 1.3g
Pregelatinized starch 53g
Superfine silica gel powder 4g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, pregelatinized starch, superfine silica gel powder are sieved respectively, mixed, cross 20 mesh sieves, mix 20 minutes, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 8
Prescription
Fenofibric Acid 1.0g
Methylcellulose 8.0g
Antierythrite 3.5g
Microcrystalline cellulose 48g
Superfine silica gel powder 1.5g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, crystal fiber element, superfine silica gel powder are sieved respectively, mixed, cross 20 mesh sieves, mix 20 minutes, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 9
Prescription
Fenofibric Acid 2.0g
Methylcellulose 3.0g
Antierythrite 1.2g
Sweet mellow wine 60g
Talcum powder 3g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, sweet mellow wine, talcum powder are sieved respectively, mixed, cross 20 mesh sieves, mix 20 minutes, compressing tablet obtains Fenofibric Acid tablet.
Embodiment 10
Prescription
Fenofibric Acid 4.0g
Methylcellulose 7.1g
Antierythrite 3.1g
Sweet mellow wine 10g
Superfine silica gel powder 5g.
Preparation method: Fenofibric Acid, methylcellulose, antierythrite, sweet mellow wine, superfine silica gel powder are sieved respectively, mixed, cross 20 mesh sieves, mix 20 minutes, compressing tablet obtains Fenofibric Acid tablet.