SPL Set ID: 81c40311-7dc4-4332-8920-a39a8466aea6

Thiothixene is a thioxanthene derivative. Specifically, it is the cis isomer of N,N-dimethyl-9-[3-(4-methyl-1-piperazinyl)propylidene]thioxanthene-2-sulfonamide. It has a molecular formula C 23 H 29 N 3 O 2 S 2 and the molecular weight is 443.63 g/mol. The chemical structure is: The thioxanthenes differ from the phenothiazines by the replacement of nitrogen in the central ring with a carbon-linked side chain fixed in space in a rigid structural configuration. An N,N-dimethyl sulfonamide functional group is bonded to the thioxanthene nucleus. Each Thiothixene Capsules, USP contains 1 mg, 2 mg, 5 mg or 10 mg of thiothixene, USP and the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch and sodium lauryl sulfate. Each empty hard gelatin capsule contains gelatin, iron oxide red, iron oxide yellow, purified water and titanium dioxide. In addition, the 1 mg hard gelatin capsule contains D&C yellow 10, FD&C blue 1 and FD&C red 40. The 2 mg hard gelatin capsule also contains D&C yellow 10 and ferrosoferric oxide. The 5 mg and 10 mg hard gelatin capsule also contains ferrosoferric oxide. The capsule is imprinted with black pharmaceutical ink which contains ferrosoferric oxide, potassium hydroxide, propylene glycol and shellac. structure