Details for Patent: 4,389,393
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Summary for Patent: 4,389,393
Title: | Sustained release therapeutic compositions based on high molecular weight hydroxypropylmethylcellulose |
Abstract: | A carrier base material combined with a therapeutically active medicament and shaped and compressed to a solid unit dosage form having a regular and prolonged release pattern upon administration, the carrier base material being one or more hydroxypropylmethylcelluloses or a mixture of one or more hydroxypropylmethylcelluloses and up to 30% by weight of the mixture of methylcellulose, sodium carboxymethylcellulose and/or other cellulose ether, and wherein at least one of the hydroxypropylmethylcelluloses has a methoxy content of 16-24 weight-%, a hydroxypropoxyl content of 4-32 weight-% and a number average molecular weight of at least 50,000 and wherein the carrier base material constitutes less than about one third of the weight of the solid unit dosage form. |
Inventor(s): | Schor; Joseph M. (Locust Valley, NY), Nigalaye; Ashok (Jackson Heights, NY), Gaylord; Norman G. (New Providence, NJ) |
Assignee: | Forest Laboratories, Inc. (New York, NY) |
Application Number: | 06/362,104 |
Patent Claim Types: see list of patent claims | Composition; Compound; Dosage form; Use; |
Drugs Protected by US Patent 4,389,393
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International Family Members for US Patent 4,389,393
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Argentina | 230569 | ⤷ Try a Trial | |||
Australia | 5676186 | ⤷ Try a Trial | |||
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Belgium | 896136 | ⤷ Try a Trial | |||
Brazil | 8300260 | ⤷ Try a Trial | |||
Canada | 1188614 | ⤷ Try a Trial | |||
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