SPL Set ID: 35bcaee1-001f-82da-e063-6394a90a4a0f
1 drug(s) with this SPL Set ID
Zonisamide is an antiseizure drug chemically classified as a sulfonamide and unrelated to other antiseizure agents. The active ingredient is zonisamide, 1,2-benzisoxazole-3-methanesulfonamide. The molecular formula is C8H8N2O3S with a molecular weight of 212.23. Zonisamide, USP is a white to off white crystalline powder, pKa=10.2, and is moderately soluble in water (0.80 mg/mL) and 0.1 N HCl (0.50 mg/mL). The chemical structure is: [Structured formula for Zonisamide] Zonisamide capsules, USP contain 25 mg or 50 mg or 100 mg zonisamide. Each capsule contains the inactive ingredients FD&C Blue #1, FD&C Red #4, gelatin, hydrogenated vegetable oil, microcrystalline cellulose, sodium lauryl sulfate, and titanium dioxide. The capsule is imprinted with black pharmaceutical ink and contains following inactive ingredients: black iron oxide, potassium hydroxide, propylene glycol and shellac.