SPL Set ID: 4a656a9f-8eb8-69b7-e054-00144ff8d46c

Topiramate is a sulfamate-substituted monosaccharide. Topiramate tablets USP are available as 25mg, 50 mg and 100 mg circular tablets and 200 mg capsule shaped tablets for oral administration. Topiramate USP is a white crystalline powder with a bitter taste. Topiramate USP is most soluble in alkaline solutions containing sodium hydroxide or sodium phosphate and having a pH of 9 to 10. It is freely soluble in acetone, chloroform, dimethylsulfoxide, and ethanol. The solubility in water is 9.8 mg/mL. Its saturated solution has a pH of 6.3. Topiramate has the molecular formula C 12 H 21 NO 8 S and a molecular weight of 339.36. Topiramate is designated chemically as 2,3:4,5Di- O -isopropylidene-ß-D-fructopyranose sulfamate and has the following structural formula: Each tablet, for oral administration, contains 25 mg, 50 mg, 100 mg and 200 mg topiramate and has the following inactive ingredients: hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, pregelatinized starch, sodium starch glycolate and titanium dioxide. In addition, the 25 mg also contains FD&C Blue #2; the 50 mg and 100 mg also contain red iron oxide and yellow iron oxide; and the 200 mg also contains red iron oxide. topi