SPL Set ID: 6f08df05-cc29-45ef-8f6e-12272bfbb0d7

Methimazole (1-methylimidazole-2-thiol) is a white, crystalline substance that is freely soluble in water. It differs chemically from the drugs of the thiouracil series primarily because it has a 5-instead of a 6-membered ring. Methimazole tablet, USP contains 5 mg or 10 mg (43.8 or 87.6 μmol) methimazole, an orally administered antithyroid drug. Each tablet also contains lactose monohydrate, pregelatinised starch, talc, and magnesium stearate. The molecular weight is 114.17, and the molecular formula is C 4 H 6 N 2 S.The structural formula is as follows: str