Drop pills of amlodipine maleate and preparation method thereof
A kind of technology of amlodipine maleate and maleic acid, which is applied in the field of medicines with special dosage forms, preparation of medicines, and medicines for treating hypertension and angina pectoris
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specific Embodiment approach 1
[0075] (1) material preparation
[0076] According to the active ingredient of the drug is amlodipine maleate, the matrix is polyethylene glycol 1500-20000, stearic acid, sodium stearate, glycerin gelatin, poloxamer, polyoxyl 40 stearate, shellac , polyoxyethylene monostearate, polyether, sodium carboxymethyl starch or sodium lauryl sulfate pharmaceutical excipients or a mixture of two or more of them in any proportion, maleic acid The ratio of amlodipine to the substrate is 1:2-10 in g or Kg; according to the composition of the membrane material, it is hypromellose 1.0-1.2g, titanium dioxide 0.8-1.0g, talcum powder 1.0-1.2g, iron oxide yellow 0.10-0.15g, polysorbate-80 0.4-0.5g, add 80% ethanol to 50ml ratio to prepare raw materials;
[0077] (2) Preparation of dropping pills
[0078] a. Pass the raw materials through a 100-120 mesh sieve, weigh polyethylene glycol-6000 and poloxamer in proportion, heat and melt them in a water bath at 80°C, cool to 65°C and add the presc...
specific Embodiment approach 2
[0084] (1) material preparation
[0085] Containing amlodipine maleate 6.42g, polyethylene glycol-6000 35g, poloxamer 6g in the dropping pills of 47.5mg per 1000 pills; The drop pill that every pill weight is 47.5mg needs hypromellose 1.0g, titanium dioxide 0.8g, talcum powder 1.0g, iron oxide yellow 0.15g, polysorbate-80 0.4g, 80% ethanol to add to the ratio preparation of 50ml good membrane material;
[0086] (2) Preparation of dropping pills
[0087] a. Pass the raw materials through a 100-120 mesh sieve, weigh polyethylene glycol-6000 and poloxamer in proportion, heat and melt them in a water bath at 80°C, cool to 65°C and add the prescribed amount of ammonia maleate Clodipine, heat and stir at 60°C until uniform.
[0088] b. Keep warm at 60°C. After adjusting the temperature of the cooling liquid, adjust the weight of the pellets to reach the specified weight. Drop them into the simethicone cooling liquid at a constant speed. The drops will shrink, form, and solidify i...
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