Question: is mesalamine a controlled substance?
Answer: PENTASA (mesalamine) for oral administration is a controlled-release formulation of mesalamine, an aminosalicylate anti-inflammatory agent for gastrointestinal use. Chemically, mesalamine is 5-amino-2-hydroxybenzoic acid. It has a molecular weight of 153.14. Each 250 mg capsule contains 250 mg of mesalamine.