Generated: December 11, 2017
DrugPatentWatch Database Preview
Details for Patent: 5,541,170
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Summary for Patent: 5,541,170
|Title:|| Orally administrable pharmaceutical compositions|
|Abstract:||A solid dosage form, such as a capsule or tablet, containing a pharmacologically active agent is coated with an anionic polymer, which is insoluble in gastric juice and in intestinal juice below pH7 but soluble in colonic intestinal juice, in a sufficient amount that the oral dosage form remains intact until it reaches the colon. The preferred anionic polymer is a partly methyl esterified methacrylic acid polymer in which the ratio of free carboxylic groups to ester groups is about 1:2. The invention has particular application to dosage forms of prednisolone and salts thereof, indomethacin, ibuprofen, and, especially, 5-amino-salicylic acid.|
|Inventor(s):|| Rhodes; John (Cardiff, GB7), Evans; Brian K. (Dinas Powis, GB7) |
|Assignee:|| Tillotts Pharma AG (Ziefen, CH) |
Patent Claim Types:|
see list of patent claims
|Use; Composition; Compound; Dosage form; |
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Foreign Priority and PCT Information for Patent: 5,541,170
|Foriegn Application Priority Data|
||Foreign Patent Number
||Foreign Patent Date
|United Kingdom||8123573||Jul 31, 1981|
International Patent Family for Patent: 5,541,170
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