For use an an anticonvulsive: dihydrouracil compounds of the formula …<CHEM>… where one of A and B is …<CHEM>… (where Y1 Y2 and Y3 are each H, C1-C4 straight- or branched-chain alkyl, halogen, nitro, amino, carboxyl, alkoxycarbonyl of 2-7 carbon atoms or -CF3), naphthyl or diphenylmethyl and the other is H, C1-C6 straight- or branched-chain alkyl, C2-C6 alkenyl, cyclopentyl, cyclohexyl or …<CHEM>… (where Z1, Z2 and Z3 are each H, C1-C4 straight- or branched-chain alkyl, halogen or -CF3);… X is O or S; and… R1, R2 and R3 are each H or C1-C3 straight- or branched-chain alkyl. 
ANTICONVULSIVE COMPOUNDS