ANTI-INFLAMMATORY AGENTS COPRECIPITATED WITH TANNIC ACID

摘要

1345359 Anti-inflammatory agents A H ROBINS CO Inc 15 Sept 1972 [13 Oct 1971] 42913/72 Heading A5B A coprecipitate of an anti-inflammatory agent and tannic acid is prepared by acidifying an aqueous basic solution of the anti-inflammatory agent and tannic acid and isolating the co-precipitate. The anti-inflammatory agent may be, for example, acetylsalicylic acid, phenylbutazone or indomethacin.