Compound theophlline ketotifen sustained released tablet and preparation method thereof
A technology of compound tea ketone and sustained-release tablet, which can be applied to pharmaceutical formulations, medical preparations without active ingredients, and medical preparations containing active ingredients, etc., can solve the problem of electrolyte imbalance, poor asthma effect, and poor curative effect. and other problems, to achieve the effect of reducing the dosage and frequency of medication, high product quality and stability, and low side effects
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Embodiment 1
[0033] Theophylline (as anhydrous theophylline) 200 g
[0034] Ketotifen Fumarate 1.38g
[0035] Ethylcellulose 15g
[0036] Carboxymethyl starch sodium 0.5g
[0037] Polyacrylic No. 2 90g
[0039] Preparation method: Take 200g of theophylline, 1.38g of ketotifen fumarate, 15g of ethyl cellulose, 0.5g of carboxymethyl starch, and 90g of polyacrylic acid resin No. 2, mix evenly, add an appropriate amount of ethanol to make granules, and store at 70°C Dry, add 2g of magnesium stearate, mix well, compress into tablets, and coat.
Embodiment 2
[0041] Theophylline (as anhydrous theophylline) 200 g
[0042] Ketotifen fumarate (calculated as ketotifen) 1.38g
[0043] Ethyl cellulose 30g
[0044] Carboxymethyl Starch Sodium 1g
[0045] Polyacrylic resin No. 2 60g
[0046] Magnesium stearate 3g
[0047] Preparation method: Take 200g of theophylline, 1.38g of ketotifen fumarate, 30g of ethyl cellulose, 1g of carboxymethyl starch, and 60g of polyacrylic acid resin No. 2, mix evenly, add an appropriate amount of ethanol to make granules, and dry at 70°C , adding 3g of magnesium stearate, mixing evenly, pressing into tablets, and coating.
Embodiment 3
[0049] Theophylline (as anhydrous theophylline) 200 g
[0050] Ketotifen fumarate (calculated as ketotifen) 1.38g
[0051] Ethylcellulose 40g
[0052] Sodium starch glycolate 1.5g
[0053] Polyacrylic No. 2 75g
[0055] Preparation method: Take 200g of theophylline, 1.38g of ketotifen fumarate, 40g of ethyl cellulose, 1.5g of carboxymethyl starch, and 75g of polyacrylic acid resin No. 2, mix evenly, add an appropriate amount of ethanol to make granules, and store at 70°C Dry, add 4g of magnesium stearate, mix well, compress into tablets, and coat.
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