What is true regarding sulfasalazine?
Correct Answer: Active moiety is 5 amino salicylic acid in ulcerative colitis
Description: Around 90% of a dose of sulfasalazine reaches the colon, where most of it is metabolized by bacteria into sulfapyridine and mesalazine (also known as 5-aminosalicylic acid or 5-ASA).5 ASA is the active moiety produced in the colon in U.Colitis.In rheumatoid ahritis the active moiety is sulphapyridine.Ref: Katzung 13th ed. Pg: 1072
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