Acotiamide hydrochloride sustained-release drug and preparation method thereof
A technology of acotiamide hydrochloride and sustained-release agent, which is applied in the field of medicine, can solve problems such as easy forgetting, and achieve the effects of good compliance, easy swallowing, and easy preservation
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Embodiment 1
[0038] Preparation of collagen membrane solution:
[0039] (61) Extraction of crude collagen: Soak 1kg of eel bone in 4kg of 0.05mol / L sodium hydroxide solution for 20 hours, then rinse with clean water until neutral; then stir and soak in 10kg of 0.05mol / L hydrochloric acid solution for 3 hours Rinse with water until neutral, and grind to prepare crude collagen;
[0040] (62) Preparation of membrane solution: add 120mL of distilled water to 40g of crude collagen, extract at 80°C, and filter out insoluble substances. .
Embodiment 2
[0042] Prepare acotiamide hydrochloride sustained-release tablet according to the prescription in table 1:
[0043] (1) Weigh acotiamide hydrochloride, starch, dextrin, and sodium carboxymethyl starch through an 80-mesh sieve, mix well, and set aside;
[0044] (2) Weigh hydroxypropyl cellulose and slowly add it to water at a temperature above 50°C, stir to disperse evenly, cool to room temperature, and set aside;
[0045] (3) Add the binder aqueous solution prepared in step (2) to the mixed powder in step (1) to prepare a soft material. The soft material is wet granulated through a 24-mesh sieve, and the wet granules are dried at 50°C ;
[0046] (4) Pass the dry granules through a 24-mesh sieve for granulation, add magnesium stearate, and mix;
[0047] (5) According to the theoretical tablet weight (each tablet contains 150 mg of acotiamide hydrochloride), press to obtain ellipsoidal plain tablets;
[0048] (6) Take the vegetarian tablet, add the film solution (obtained by ...
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