Therapeutic Group: Drugs of Nervous System, Anti Migraine Presentation Topirva XR 25: Each extended release capsule contains Topiramate USP 25 mg. Topirva XR 50: Each extended release capsule contains Topiramate USP 50 mg. Topirva XR 100: Each extended release capsule contains Topiramate USP 100 mg. Description The precise mechanisms by which Topiramate exerts its anticonvulsant […]