|Title:||Orally administrable pharmaceutical composition|
|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;|
|Foriegn Application Priority Data|
|Foreign Country||Foreign Patent Number||Foreign Patent Date|
|United Kingdom||8123573||Jul 31, 1981|
|Country||Document Number||Publication Date||Supplementary Protection Certificate||SPC Country||SPC Expiration|
|Finland||85216||Dec 13, 1991|
|Norway||159696||Feb 01, 1989|
|Finland||833099||Aug 31, 1983|
|United Kingdom||2123695||Feb 08, 1984|
|United Kingdom||2123695||May 01, 1985|
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