Controlled release solid drug dosage forms based on mixtures of water soluble nonionic cellulose ethers and anionic surfactants
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United States of America Patent
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Jul 18, 1989
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N/A
app pub date -
Jan 5, 1988
filing date -
Mar 26, 1984
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Expired
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Abstract
A therapeutically active solid unit dosage form having a controlled and prolonged release pattern upon administration, comprising a mixture of a high viscosity grade methylcellulose or hydroxypropylmethylcellulose, an alkali metal sulfate or sulfonate and a therapeutically active medicament.
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