CN113855641A - Preparation method of folic acid solid preparation - Google Patents

Preparation method of folic acid solid preparation Download PDF

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Publication number
CN113855641A
CN113855641A CN202111381919.6A CN202111381919A CN113855641A CN 113855641 A CN113855641 A CN 113855641A CN 202111381919 A CN202111381919 A CN 202111381919A CN 113855641 A CN113855641 A CN 113855641A
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folic acid
preparation
granules
tablets
excipient
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周世旺
杨加庚
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Tianjin Lisheng Pharmaceutical Co ltd
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Tianjin Lisheng Pharmaceutical Co ltd
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2095Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
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    • A61K31/505Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/519Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
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    • A61K9/2004Excipients; Inactive ingredients
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2013Organic compounds, e.g. phospholipids, fats
    • A61K9/2018Sugars, or sugar alcohols, e.g. lactose, mannitol; Derivatives thereof, e.g. polysorbates
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K9/2022Organic macromolecular compounds
    • A61K9/2031Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyethylene oxide, poloxamers
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/205Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
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    • A61K9/2022Organic macromolecular compounds
    • A61K9/205Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2059Starch, including chemically or physically modified derivatives; Amylose; Amylopectin; Dextrin
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/02Nutrients, e.g. vitamins, minerals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00Drugs for disorders of the blood or the extracellular fluid
    • A61P7/06Antianaemics

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Abstract

The invention provides a preparation method of a folic acid solid preparation; the tablet is prepared by active ingredient folic acid and other pharmaceutic adjuvants through proper process, the folic acid is crushed and sieved by a 200-mesh sieve, and is granulated with excipient and stabilizer, and the dried granules are added with lubricant and pressed into tablets with certain hardness or the granules are directly filled into capsules. The preparation method is easy for industrial production and the quality of the product is consistent; the folic acid solid preparation has excellent stability and uniformity.

Description

Preparation method of folic acid solid preparation
Technical Field
The invention relates to the technical field of antianemia drugs, in particular to a preparation method of a folic acid solid preparation.
Background
Folic acid is a B-group vitamin, consists of pteridine, p-aminobenzoic acid and L-glutamic acid, and is widely present in meat, fresh fruits and vegetables. In 1931, Wills et al, a doctor in the Indian Mumbay obstetrics Hospital, discovered that yeast or liver concentrates had some effect on megaloblastic anemia symptoms in pregnant women, and these extracts were thought to have some anti-anemia factor; in 1935, yeast and liver extracts were found to have some effect on the anemia symptoms of monkeys, which were described as VM; in 1939, a factor against chicken anemia was found in the liver, known as VBe; in 1941, h.k.mitchell et al found that spinach contains a factor of streptococcus lactis, called folate. In 1945, R.B. Angier et al, when synthesizing pteroylglutamic acid, found that all the above factors were the same substance and completed the structure determination, and they were often referred to as folic acid thereafter. Therefore, folic acid is also called vitamin B9, anti-anemia factor, pteroylglutamic acid, etc.
Clinical administration forms of folic acid include oral administration and injection, and corresponding dosage forms include powder, injection, tablets and the like; among them, tablets are most commonly available on the market. Folacin tablets were first developed by MERUS LABS LUXCO II S.A R.L. company, marketed in France in 1947 under the trade name SPECIAFOLDINE, with a specification of 5 mg; subsequently, 1mg, 5mg specification folic acid tablets were marketed in the United states and Japan one after the other; in 2003, 0.4mg sized folic acid tablets were marketed. Folic acid tablets as antianemia agents; used for folic acid deficiency caused by various reasons and megaloblastic anemia caused by folic acid deficiency; preventive administration for pregnant and lactating women; folate deficiency caused by chronic hemolytic anemia.
According to the reports of related documents, folic acid is easy to destroy in an acid solution, unstable to heat, easy to lose at room temperature and easy to destroy by visible light. Japanese orange peel book states: folic acid was degraded by about 10% (1.0 g/150 ml) in a pH6.8 dissolution medium under direct sunlight for 7 hours. Therefore, the folic acid has poor stability, and certain difficulty is brought to preparation of the preparation. First, we prepared a commercially available formulation folic acid tablet (SPECIAFOL)DINE®) The inspection shows that the stability of the preparation sold on the market is poor, and each impurity in related substances continuously grows along with the increase of the standing time at room temperature; the maximum single impurity in the related substances reaches 1.12 percent in the near effective period, and exceeds the limit (1.0 percent) of the single impurity in the related substances of folic acid tablets in the current Chinese pharmacopoeia.
The patent of Shenyang Gulin pharmaceutical Co., Ltd for "a folic acid tablet and its preparation method" (application number: 201110280578.3) adopts wet granulation process, folic acid and lactose are mixed according to equal amount by gradually adding method, then mixed with starch and sucrose uniformly, granulated by adding 60% ethanol, wet-sized with 30 mesh screen, put the prepared wet granules into a hot air circulation oven at 55-65 ℃ for material drying for 3.5-4.5 hours, dried and sized with 30 mesh screen, mixed with magnesium stearate for 30 minutes and tabletted. The folic acid tablets obtained in the patent have uniform content, the dissolution rate is over 95 percent, but the stability of the folic acid tablets is not described; analysis shows that folic acid is unstable at high temperature, wet particles are placed in a hot air circulation oven at 55-65 ℃ for drying for 3.5-4.5 hours, and the particles are dried at high temperature for a long time, so that impurities are easily generated.
A folic acid solid preparation and a preparation method thereof (application number: 201410499518.4) applied by Beijing Silian drug industry Co., Ltd adopts a dry granulation process, which comprises mixing lactose, starch and folic acid, dry-pressing and crushing by a dry press under the pressure of 0.5-1.5Mpa, and screening and collecting 24-65 mesh granules; magnesium stearate was added to the resulting granules, and the mixture was subjected to tableting. As is well known, when dry granulation is performed, a large amount of heat is generated when a compression roller runs for a long time to extrude materials, and the medicine is possibly unstable, so that the risk that the product cannot be avoided is brought in the process. In addition, the dry granulation process has high requirement on auxiliary materials, the auxiliary materials with good adhesiveness and fluidity need to be selected, and the auxiliary materials are expensive, so that huge cost and trouble are brought to pharmaceutical companies.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a preparation method of a novel folic acid solid preparation. The invention adopts a wet granulation or one-step granulation process, folic acid is dispersed in a stabilizer solution and then granulated with an excipient, or folic acid and the excipient are mixed and then granulated by using the stabilizer solution as an adhesive, thereby skillfully solving the problems of poor stability of tablets, uneven medicine mixing, color spots on the tablet surface and the like. The solid preparation prepared by the invention can meet the requirement that related substances do not have obvious change in the 6-month placing process under the acceleration condition; also has excellent dissolution effect, and the dissolution rate can reach more than 90 percent within 15 minutes.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for preparing folic acid solid preparation is characterized in that folic acid is used as an active ingredient and pharmaceutic adjuvants are prepared, wherein the pharmaceutic adjuvants comprise a stabilizer, an excipient and a lubricant; every 1000 tablets of the folic acid solid preparation are composed of the following components in parts by weight: 0.4-5g of folic acid, 5-15g of stabilizer, 70-90g of excipient and 0.1-2.0g of lubricant;
the stabilizing agent is selected from polyethylene glycol with the molecular weight range of 3350, 4000 or 6000;
the excipient is selected from two or more of microcrystalline cellulose, corn starch, pregelatinized starch, lactose, sucrose, dextrin, mannitol, xylitol and calcium hydrogen phosphate;
the lubricant is one or more of talcum powder, silicon dioxide, magnesium stearate, stearic acid and sodium stearyl fumarate and is prepared by the following method:
the method comprises the following steps: crushing folic acid and sieving with a 200-mesh sieve;
step two: granulating the crushed folic acid, excipient and stabilizer;
step three: drying the obtained granules at 40-70 deg.C;
step four: granulating the dried granules with a 20-30 mesh screen;
step five: adding a lubricant into the granules and mixing for 5-10 minutes;
step six: tabletting, and controlling the hardness of the tablets to be 2-6 kg; or directly encapsulating the granules.
The invention further discloses an application of the preparation method of the folic acid solid preparation in improving the stability of the folic acid solid preparation. The experimental results show that: the folic acid solid preparation prepared by the invention has good stability, even medicine mixing and no color spots on the surface. The solid preparation prepared by the invention can meet the requirement that related substances have no significant change in the 6-month placing process under the acceleration condition; also has excellent dissolution effect, and the dissolution rate can reach more than 90 percent within 15 minutes.
The invention is described in more detail below: a solid folic acid preparation is prepared from folic acid as active component and medicinal auxiliaries including stabilizer, excipient and lubricant.
Every 1000 tablets of the folic acid solid preparation are composed of the following components in parts by weight: 0.4-5g of folic acid, 5-15g of stabilizer, 70-90g of excipient and 0.1-2.0g of lubricant.
Wherein the stabilizer is selected from one of hydroxypropyl methylcellulose, povidone, copovidone, polyethylene glycol and hydroxypropyl cellulose. The preferred stabilizer is polyethylene glycol. Wherein the stabilizer polyethylene glycol has a molecular weight in the range of 1000 to 8000; the preferred molecular weight range of the stabilizer polyethylene glycol is one of 3350, 4000, or 6000.
The excipient is selected from two or more of microcrystalline cellulose, corn starch, pregelatinized starch, lactose, sucrose, dextrin, mannitol, xylitol, and calcium hydrogen phosphate. Wherein the two compositions are corn starch and lactose, pregelatinized starch and calcium hydrogen phosphate, pregelatinized starch and microcrystalline cellulose; the part ratio is 1: 3. the two or more compositions are corn starch, mannitol and lactose, pregelatinized starch, lactose and calcium hydrogen phosphate, pregelatinized starch, microcrystalline cellulose and calcium hydrogen phosphate; wherein the part ratio is 1: 3: 5.
preferred excipient combinations are dibasic calcium phosphate, microcrystalline cellulose and pregelatinized starch.
The lubricant is one or more of colloidal silicon dioxide, magnesium stearate, stearic acid and sodium stearyl fumarate. Wherein one or more of the compositions are silicon dioxide and magnesium stearate, colloidal silicon dioxide and magnesium stearate, silicon dioxide and stearic acid, silicon dioxide and sodium stearyl fumarate; wherein the part ratio is 2: 3. a preferred combination of lubricants is silicon dioxide and magnesium stearate.
The preparation method of the folic acid solid preparation is characterized by comprising the following preparation steps:
the method comprises the following steps: the folic acid is crushed and sieved, and the mesh is 100 to 200;
step two: granulating the crushed folic acid, excipient and stabilizer;
step three: drying the obtained granules at 40-70 deg.C;
step four: granulating the dried granules with a 20-30 mesh screen;
step five: adding a lubricant into the granules and mixing for 5-10 minutes;
step six: tabletting, and controlling the hardness of the tablets to be 2-6 kg; or directly encapsulating the granules.
Further, the preparation method of the folic acid solid preparation is characterized by comprising the following preparation steps:
the method comprises the following steps: crushing and sieving folic acid, and sieving with a 200-mesh sieve;
step two: mixing the crushed folic acid, calcium hydrophosphate, microcrystalline cellulose and pregelatinized starch, and granulating by using a polyethylene glycol solution;
step three: transferring the prepared wet granules to a fluidized bed at 40-60 ℃ for drying for 10-30 minutes;
step four: granulating the dried granules with a 20-30 mesh screen;
step five: transferring the granules to a mixer, adding silicon dioxide and magnesium stearate, and mixing for 5-10 minutes;
step six: tabletting, and controlling the hardness of the tablets to be 2-6 kg; or directly encapsulating the granules.
Further, the solvent of the polyethylene glycol solution can be purified water, 95% ethanol, and a mixture of ethanol and water in any proportion.
The folic acid solid preparation obtained by the technical scheme can ideally achieve the aims and technical effects of the invention, and specifically, the folic acid solid preparation and the preparation method thereof can achieve the following effects:
(1) the obtained folic acid solid preparation has less related substances increase and good stability.
(2) Excellent elution effect.
(3) Stable technological process, good quality reproducibility and controllable quality.
It should be noted that, in order to make the contents and technical connotations of the present invention more clearly understood by those skilled in the art, the inventor of the present invention makes the following descriptions of the related terms and symbols, applied to the reagent consumables and the apparatus and equipment:
"day 0": refers to the time when sample preparation is complete;
"acceleration condition": the temperature is 40 ℃ plus or minus 2 ℃, and the relative humidity is 75% + orminus 5%.
Detailed Description
The invention is described below by means of specific embodiments. Unless otherwise specified, the technical means used in the present invention are well known to those skilled in the art. In addition, the embodiments should be considered illustrative, and not restrictive, of the scope of the invention, which is defined solely by the claims. It will be apparent to those skilled in the art that various changes or modifications in the components and amounts of the materials used in these embodiments can be made without departing from the spirit and scope of the invention. The raw materials and reagents used in the present invention are commercially available. In order to facilitate understanding of the present invention by those skilled in the art, the present invention provides the following embodiments to further explain the folic acid solid preparation and the preparation method thereof:
example 1
Prescription (1000 tablets)
Figure DEST_PATH_IMAGE001
The preparation method comprises the following steps:
1. crushing and sieving folic acid, and sieving with 200 mesh sieve;
2. mixing the crushed folic acid, calcium hydrophosphate, microcrystalline cellulose and pregelatinized starch, and granulating by using a polyethylene glycol solution;
3. the wet granules obtained were transferred to a fluidized bed at 70 ℃ for drying for about 15 minutes;
4. granulating the dried granules by using a 24-mesh screen;
5. the granules were transferred to a blender and mixed for 5 minutes with the addition of silicon dioxide and magnesium stearate;
6. tabletting, and controlling the hardness of the tablets to be 3 kg.
Example 2
Prescription (1000 tablets)
Figure DEST_PATH_IMAGE002
The preparation method comprises the following steps:
1. crushing and sieving folic acid, and sieving with 200 mesh sieve;
2. dispersing the crushed folic acid in a polyethylene glycol aqueous solution, and mixing with calcium hydrophosphate, microcrystalline cellulose and pregelatinized starch for granulation;
3. the wet granules obtained were transferred to a fluidized bed at 60 ℃ for drying for about 15 minutes;
4. granulating the dried granules by using a 30-mesh screen;
5. the granules were transferred to a blender and blended with silicon dioxide and magnesium stearate for 10 minutes;
6. tabletting, and controlling the hardness of the tablets to be 3 kg.
Example 3
Prescription (1000 tablets)
Figure DEST_PATH_IMAGE003
The preparation method comprises the following steps:
1. crushing and sieving folic acid, and sieving with 200 mesh sieve;
2. dispersing the crushed folic acid in a polyethylene glycol ethanol solution, and mixing with calcium hydrophosphate, microcrystalline cellulose and pregelatinized starch for granulation;
3. the wet granules obtained were transferred to a fluidized bed at 50 ℃ for about 30 minutes to dry;
4. granulating the dried granules by using a 24-mesh screen;
5. the granules were transferred to a blender and mixed for 5 minutes with the addition of silicon dioxide and magnesium stearate;
6. tabletting, and controlling the hardness of the tablets to be 3 kg.
Example 4
Prescription (1000 tablets)
Figure DEST_PATH_IMAGE004
The preparation method comprises the following steps:
1. crushing and sieving folic acid, and sieving with 200 mesh sieve;
2. mixing the crushed folic acid, calcium hydrophosphate, microcrystalline cellulose and pregelatinized starch, and granulating by using a polyethylene glycol solution;
3. the wet granules obtained were transferred to a fluidized bed at 40 ℃ for about 30 minutes to dry;
4. granulating the dried granules by using a 24-mesh screen;
5. the granules were transferred to a blender and mixed for 5 minutes with the addition of silicon dioxide and magnesium stearate;
6. tabletting, and controlling the hardness of the tablet to be 4 kg.
Example 5
Prescription (1000 tablets)
Figure DEST_PATH_IMAGE005
The preparation method comprises the following steps:
1. crushing folic acid and sieving with a 200-mesh sieve;
2. dispersing the crushed folic acid in a polyethylene glycol aqueous solution, and mixing with calcium hydrophosphate, microcrystalline cellulose and pregelatinized starch for granulation;
3. the wet granules obtained were transferred to a fluidized bed at 60 ℃ for drying for about 15 minutes;
4. granulating the dried granules by using a 24-mesh screen;
5. transferring the granules to a mixer, adding silicon dioxide and stearic acid, and mixing for 5 minutes;
6. the granules are filled into capsules.
Comparative example 1
Prescription (1000 tablets)
Figure DEST_PATH_IMAGE006
The preparation method comprises the following steps:
1. crushing folic acid and sieving with a 200-mesh sieve;
2. mixing the crushed folic acid and the pregelatinized starch by an equivalent progressive method, and then uniformly mixing the folic acid, the calcium hydrophosphate and the microcrystalline cellulose;
3. adding silicon dioxide and magnesium stearate and mixing for 5 minutes;
4. tabletting, and controlling the hardness of the tablets to be 3 kg.
Comparative example 2
Prescription (1000 tablets)
Figure DEST_PATH_IMAGE007
The preparation method comprises the following steps:
1. the folic acid, D90, was used at 210 μm;
2. dispersing the crushed folic acid in a polyethylene glycol 4000 aqueous solution, and mixing with calcium hydrophosphate, microcrystalline cellulose and pregelatinized starch for granulation;
3. the wet granules obtained were transferred to a fluidized bed at 60 ℃ for drying for about 20 minutes;
4. granulating the dried granules by using a 24-mesh screen;
5. the granules were transferred to a blender and mixed for 5 minutes with the addition of silicon dioxide and magnesium stearate;
6. tabletting, and controlling the hardness of the tablets to be 3 kg.
Test example 1
And (3) related substance inspection:
the intermediates of examples 1-5 and comparative example 1 are packaged according to the market, and are placed under the acceleration condition with the commercial preparation, taken out at 0, 3 and 6 months, related substances are detected, and the stability of the sample is examined; according to the related substance inspection method under the folic acid tablet item in the current Chinese pharmacopoeia, the related substances of the examples 1-5, the comparative example 1 and the commercial preparation are inspected, and the results are as follows:
Figure DEST_PATH_IMAGE008
the inspection results of related substances show that: after the samples of the examples 1 to 5 are subjected to the acceleration condition for 6 months, the contents of the maximum single impurity, the pteroic acid and the total impurity in related substances are obviously smaller than those of the commercial preparation and the sample of the comparative example 1, and the increase amplitude of each impurity is small; in addition, according to the regulation of related substances under the folic acid tablet item in the current Chinese pharmacopoeia: pteroic acid is not more than 0.6%, the maximum single impurity is not more than 1.0%, the total impurities (except pteroic acid) are not more than 3.0%, and the maximum single impurity in the commercial preparation and the related substances of the sample of comparative example 1 is out of limits after 3 months under accelerated conditions. The preparation method can obtain samples with good related substance level and high stability.
Test example 2
According to the content uniformity detection method in the existing Chinese pharmacopoeia, the content uniformity detection is carried out on the examples 1-5, the comparative example 1 and the commercially available preparation, and the results are as follows:
Figure DEST_PATH_IMAGE009
the data in the table show that the content uniformity of the folic acid tablets prepared according to the invention is good, and the result is far less than the requirement that A +2.2S is less than or equal to 15.0 specified in the current Chinese pharmacopoeia. And is superior to the folic acid tablet prepared by the powder direct compression process in the commercial preparation and the comparative example 1.
Test example 3
And (3) dissolution rate inspection:
according to the dissolution rate detection method under the item of folic acid tablets in the current Chinese pharmacopoeia, the detection is carried out, and the results are as follows:
Figure DEST_PATH_IMAGE010
according to the dissolution rate regulation of the folic acid tablets in the current Chinese pharmacopoeia, the dissolution rate is not less than 75 percent in 30 minutes. The dissolution rate of the invention in 30 minutes is higher than 90%, which is obviously higher than that of the comparative example 1, the comparative example 2 and the commercial preparations, and the invention has excellent dissolution effect.
The above description of the embodiments is only intended to facilitate the understanding of the method and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications are also within the scope of the present invention as defined in the appended claims.

Claims (2)

1. A method for preparing folic acid solid preparation is characterized in that folic acid is used as an active ingredient and pharmaceutic adjuvants are prepared, wherein the pharmaceutic adjuvants comprise a stabilizer, an excipient and a lubricant; every 1000 tablets of the folic acid solid preparation are composed of the following components in parts by weight: 0.4-5g of folic acid, 5-15g of stabilizer, 70-90g of excipient and 0.1-2.0g of lubricant;
the stabilizing agent is selected from polyethylene glycol with the molecular weight range of 3350, 4000 or 6000;
the excipient is selected from two or more of microcrystalline cellulose, corn starch, pregelatinized starch, lactose, sucrose, dextrin, mannitol, xylitol and calcium hydrogen phosphate;
the lubricant is one or more of talcum powder, silicon dioxide, magnesium stearate, stearic acid and sodium stearyl fumarate and is prepared by the following method:
the method comprises the following steps: crushing folic acid and sieving with a 200-mesh sieve;
step two: granulating the crushed folic acid, excipient and stabilizer;
step three: drying the obtained granules at 40-70 deg.C;
step four: granulating the dried granules with a 20-30 mesh screen;
step five: adding a lubricant into the granules and mixing for 5-10 minutes;
step six: tabletting, and controlling the hardness of the tablets to be 2-6 kg; or directly encapsulating the granules.
2. Use of a solid formulation of folic acid prepared by the method of claim 1 to improve the stability of a solid formulation of folic acid.
CN202111381919.6A 2021-11-22 2021-11-22 Preparation method of folic acid solid preparation Pending CN113855641A (en)

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Application publication date: 20211231