CN110893174A - Preparation method of diclofenac sodium enteric-coated tablets - Google Patents

Preparation method of diclofenac sodium enteric-coated tablets Download PDF

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Publication number
CN110893174A
CN110893174A CN201911226937.XA CN201911226937A CN110893174A CN 110893174 A CN110893174 A CN 110893174A CN 201911226937 A CN201911226937 A CN 201911226937A CN 110893174 A CN110893174 A CN 110893174A
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CN
China
Prior art keywords
diclofenac sodium
enteric
preparation
percent
tablet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911226937.XA
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Chinese (zh)
Inventor
林凡友
李国睿
孙永喜
薛颖
高聪杰
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Tong Ren Pharmaceutical Co Ltd
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Tong Ren Pharmaceutical Co Ltd
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Publication date
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Priority to CN201911226937.XA priority Critical patent/CN110893174A/en
Publication of CN110893174A publication Critical patent/CN110893174A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/2027Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/185Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19Carboxylic acids, e.g. valproic acid
    • A61K31/195Carboxylic acids, e.g. valproic acid having an amino group
    • A61K31/196Carboxylic acids, e.g. valproic acid having an amino group the amino group being directly attached to a ring, e.g. anthranilic acid, mefenamic acid, diclofenac, chlorambucil
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]

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  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Rheumatology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Organic Chemistry (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

The invention relates to a preparation method of diclofenac sodium enteric-coated tablets. The diclofenac sodium enteric-coated tablet comprises the following components in percentage by weight: 18 to 52 percent of diclofenac sodium, 100 to 5546 to 80 percent of acrylic resin L and 0.3 to 2 percent of lubricant, wherein the sum of the components reaches 100 percent. The diclofenac sodium tablet prepared by the invention has the advantages of small auxiliary material dosage, good stability, simple process, small drug property side effect and good safety.

Description

Preparation method of diclofenac sodium enteric-coated tablets
Technical Field
The invention belongs to the technical field of medicines, and particularly relates to a preparation method of diclofenac sodium enteric-coated tablets.
Background
Diclofenac sodium is a common anti-inflammatory analgesic. It is used for relieving rheumatoid arthritis and osteoarthritis. Acute stage or persistent joint swelling and pain symptoms of various chronic arthritis such as spondyloarthropathy, gouty arthritis, rheumatic arthritis and the like; various soft tissue rheumatalgia, such as shoulder pain, tenosynovitis, bursitis myalgia, traumatic pain after exercise, etc.; acute mild and moderate pain such as: pain after surgery, trauma, strain, etc.; primary dysmenorrhea, toothache, headache, etc.
Whether a large-dose or small-dose diclofenac sodium tablet is used for a long time, the main side effect of the diclofenac sodium tablet is stimulation to the gastrointestinal tract, the most common method for solving the problem is to prepare the enteric-coated tablet, but the common enteric-coated tablet can generate the intestinal side effect due to rapid disintegration and dissolution even when reaching the intestine, the tablet is greatly influenced by the stomach and pyloric sphincter, and researches show that the time from the stomach to the small intestine is different from 15 minutes to 7 hours, so that unstable blood concentration is easily caused, the local concentration of the small intestine is overhigh, and the intestinal stimulation is aggravated.
Disclosure of Invention
Aiming at the technical problems, the invention provides a preparation method of diclofenac sodium enteric-coated tablets, which has the advantages of small using amount of auxiliary materials, good stability and simple process.
In order to solve the technical problems, the invention adopts the following technical scheme: the preparation method of the diclofenac sodium enteric-coated tablet comprises the following components in percentage by weight:
diclofenac sodium 18-52%
Acrylic resin L100-5546% -80%
0.3 to 2 percent of lubricant,
the sum of the components reaches 100 percent;
weighing diclofenac sodium and acrylic resin L100-55, dissolving in ethanol, drying, and sieving to obtain diclofenac sodium enteric-coated tablet dispersoid; the diclofenac sodium enteric-coated tablet dispersoid is uniformly mixed with a lubricant and directly tabletted to obtain the diclofenac sodium enteric-coated tablet.
Further: each tablet contains 25-100mg of diclofenac sodium.
The lubricant is one or more of magnesium stearate, micropowder silica gel and talcum powder.
The lubricant is magnesium stearate.
The diclofenac sodium enteric-coated tablet and the preparation method thereof have the following advantages:
(1) the auxiliary material variety is less, and the tablet stability is high. The invention only adopts enteric material and lubricant, and does not add any other auxiliary material, thus improving the stability of diclofenac sodium;
(2) the acid resistance is good, and the product can be quickly dissolved out in phosphate buffer solution with pH value of 6.8. In vitro release degree experiments show that:
the tablet of the invention can release less than 1.5 percent in 0.1 mol/L hydrochloric acid for 2 hours, and the tablet is complete and has no change in appearance;
in phosphate buffer at pH 6.8, the tablets erode quickly and the drug dissolves quickly.
(3) Does not need enteric coating, has simple preparation process and is suitable for industrial production.
In addition, the diclofenac sodium tablet has the main side effect of stimulating gastrointestinal tracts after being used for a long time, and the enteric-coated tablet can reduce the local stimulation of the medicine to the stomach and also reduce the damage of gastric juice to the medicine. The diclofenac sodium enteric-coated tablet does not disintegrate in stomach, can be absorbed in intestinal tract, and has low irritation to stomach. The diclofenac sodium and the acrylic resin L100-55 are dissolved in ethanol, and are dried and sieved, so that the materials can be fully and uniformly mixed, and meanwhile, the problem of caking is well avoided by adopting the acrylic resin L100-55. Ethanol is used as the most common organic reagent, is widely applied in the field of tablets, has comprehensive safety protection measures and does not have serious potential safety hazard. At the same time, the volatility of ethanol determines that it has little solvent remaining after drying.
Therefore, the diclofenac sodium tablet obtained by the invention has the advantages of small auxiliary material dosage, good stability, simple process, small drug property side effect and good safety.
Detailed Description
The invention is further illustrated by the following examples. The formulation and preparation method of the present invention are for illustration and not for limitation, and the simple modification of the formulation and preparation method of diclofenac sodium enteric-coated tablet based on the concept of the present invention is within the scope of the present invention.
Example 1
Dissolving 100g of diclofenac sodium and 100-55100 g of acrylic resin L in 500mL of ethanol by stirring, drying for 24 hours at 40 ℃ in a vacuum oven, crushing, and sieving with a 30-mesh sieve to obtain a diclofenac sodium enteric-coated tablet dispersion; dispersing enteric-coated tablet with hard gelatin
Mixing magnesium stearate, and compression molding with rotary tablet press.
Example 2
25g of diclofenac sodium and 100-55100 g of acrylic resin are stirred and dissolved in 1000mL of ethanol, dried for 24 hours at 45 ℃ in a vacuum oven, crushed and sieved by a 24-mesh sieve to obtain a diclofenac sodium enteric-coated tablet dispersoid; the obtained enteric-coated tablet dispersion is uniformly mixed with 1.2g of magnesium stearate and 1.0 g of aerosil, and is compressed and molded by a rotary tablet machine.
Example 3
The above examples 1 to 3 were prepared as follows
50g of diclofenac sodium and 100-55150 g of acrylic resin are stirred and dissolved in 500mL of ethanol, dried for 24 hours at 40 ℃ in a vacuum oven, crushed and sieved by a 30-mesh sieve to obtain a diclofenac sodium enteric-coated tablet dispersoid; the obtained enteric tablet dispersion was mixed with 0.6 g of magnesium stearate, and compression-molded by a rotary tablet press.
The diclofenac sodium enteric-coated tablet prepared by the invention has the advantages of small auxiliary material dosage, good stability, simple process, small drug effect and good safety.

Claims (3)

1. The preparation method of the diclofenac sodium enteric-coated tablet comprises the following components in percentage by weight:
diclofenac sodium 18-52%
Acrylic resin L100-5546% -80%
0.3 to 2 percent of lubricant,
the sum of the components reaches 100 percent;
weighing diclofenac sodium and acrylic resin L100-55, dissolving in ethanol, drying, and sieving to obtain diclofenac sodium enteric-coated tablet dispersoid; the diclofenac sodium enteric-coated tablet dispersoid is uniformly mixed with a lubricant and directly tabletted to obtain the diclofenac sodium enteric-coated tablet.
2. The preparation method of diclofenac sodium enteric-coated tablets according to claim 1, characterized in that: each tablet contains diclofenac sodium 25-100 mg.
3. The preparation method of diclofenac sodium enteric-coated tablets according to claim 1, characterized in that: the lubricant is one or more of magnesium stearate, micro-powder silica gel and talcum powder.
CN201911226937.XA 2019-12-04 2019-12-04 Preparation method of diclofenac sodium enteric-coated tablets Pending CN110893174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911226937.XA CN110893174A (en) 2019-12-04 2019-12-04 Preparation method of diclofenac sodium enteric-coated tablets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911226937.XA CN110893174A (en) 2019-12-04 2019-12-04 Preparation method of diclofenac sodium enteric-coated tablets

Publications (1)

Publication Number Publication Date
CN110893174A true CN110893174A (en) 2020-03-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111700872A (en) * 2020-07-20 2020-09-25 华益药业科技(安徽)有限公司 Diclofenac enteric-coated tablet and processing technology thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948581A (en) * 1989-02-17 1990-08-14 Dojin Iyaku-Kako Co., Ltd. Long acting diclofenac sodium preparation
AU7537000A (en) * 1999-10-01 2001-05-10 Norton Healthcare Ltd Anti-inflammatory pharmaceutical formulations
CN106109426A (en) * 2016-06-23 2016-11-16 广东肇庆星湖生物科技股份有限公司 A kind of diclofenac sodium enteric-coated tablets and preparation method thereof
CN109646412A (en) * 2018-12-12 2019-04-19 中国药科大学 A kind of enteric Pharmaceutical composition and its preparation method and application

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948581A (en) * 1989-02-17 1990-08-14 Dojin Iyaku-Kako Co., Ltd. Long acting diclofenac sodium preparation
AU7537000A (en) * 1999-10-01 2001-05-10 Norton Healthcare Ltd Anti-inflammatory pharmaceutical formulations
CN106109426A (en) * 2016-06-23 2016-11-16 广东肇庆星湖生物科技股份有限公司 A kind of diclofenac sodium enteric-coated tablets and preparation method thereof
CN109646412A (en) * 2018-12-12 2019-04-19 中国药科大学 A kind of enteric Pharmaceutical composition and its preparation method and application

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111700872A (en) * 2020-07-20 2020-09-25 华益药业科技(安徽)有限公司 Diclofenac enteric-coated tablet and processing technology thereof

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Application publication date: 20200320