Enteric capsules

Details Enteric capsules Enteric capsules

A - Human Necessities

61

K

167/154

A61K 9/48 (2006.01) A61J 3/07 (2006.01)

Patent

CA 1062613

Application for Letters Patent on an Invention Entitled: "ENTERIC CAPSULES" Abstract of the Disclosure: Pharmaceutical capsules having enteric properties are formed from a homogeneous composition comprising (1) gelatin or hydroxypropyl methylcellulose and (2) an ammonium salt of either a) cellulose acetate phthalate, b) hydroxypropyl methylcellulose phthalate, or c) a copolymer of methacrylic acid and methacrylic acid alkyl ester; optionally with the inclusion of plasticizer and/or coloring agent. The capsules are soluble in or disintegrated by the alkaline intestinal secretions but are substantially insoluble or resistant to solution in the acid secretions of the stomach. - 1 -

250411

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