SPL Set ID: ab0631ca-5339-4570-bc27-f1dd92de1d6f
1 drug(s) with this SPL Set ID
Zonisamide capsules, USP is an antiseizure drug chemically classified as a sulfonamide and unrelated to other antiseizure agents. The active ingredient is zonisamide USP, 1,2-benzisoxazole-3-methanesulfonamide. The molecular formula is C 8 H 8 N 2 O 3 S with a molecular weight of 212.23. Zonisamide is a white to off-white powder, pKa = 10.2, and is moderately soluble in water (0.8 mg/mL) and 0.1 N HCl (0.5 mg/mL). The chemical structure is: Zonisamide capsules, USP are supplied for oral administration as capsules containing 25 mg, 50 mg or 100 mg zonisamide USP. Each 25 mg, 50 mg and 100 mg capsule contains the labeled amount of zonisamide USP plus the following inactive ingredients: hydrogenated vegetable oil and microcrystalline cellulose. The capsule shell contains gelatin and titanium dioxide. Imprinting ink contains black iron oxide E172, butyl alcohol, dehydrated alcohol, isopropyl alcohol, potassium hydroxide, propylene glycol, purified water, shellac and strong ammonia solution. In addition 100 mg zonisamide capsule shell contains black iron oxide E172 and red iron oxide E172. Chemical Structure