The chemical Zonisamide has a designated molecular formula of C8H8N2O3S and a molecular weight of 212.223 g/mol. Synonyms may include: AD-810, BRN 1077076, CI-912, Exceglan, Excegram, PD 110843, 3-(Sulfamoylmethyl)-1,2-benzisoxazole, Zonisamida [Spanish], Zonisamidum [Latin], Zonegran, HSDB 7293, Zonisamida (ChemID). Zonisamide has been assigned a MeSH pharmacological action of: Calcium Channel Blockers.