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|Title:||Sustained action dosage forms|
|Abstract:||By incorporating solid drug substances into mixtures of higher alkanols and/or alkanoic acids melting above 25.degree. C, forming granules thereof and covering them with a prolamine, a pharmaceutical dosage form is obtained, which slowly and evenly releases the drug within the gastrointestinal tract of a mammal.|
|Inventor(s):||Sheth; Pravin (Springfield, NJ), Leeson; Lewis J. (Roseland, NJ)|
|Assignee:||Ciba-Geigy Corporation (Ardsley, NY)|
Patent Claim Types:|
see list of patent claims
|Compound; Dosage form; Formulation; Process;|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
| This preview shows a limited data set|
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.
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