Anticonvulsant compositions comprise as the active ingredient a compound selected from the group consisting of those of the formulae: ##STR1## wherein R.sub.1 is phenyl, 4-pyridyl, 3-pyridyl, or 2-pyridyl, and R.sub.2 is hydrogen, m- or p-methyl, p-methoxy, m- or p-chloro, m- or p-bromo, m- or p-fluoro, m- or p-trifluoromethyl, 3,4-dichloro or 3,5-dichloro. The compositions are administered to mammals in an amount to provide a dosage amount ranging from about 25 mg/kg to 300 mg/kg.