Hydantoin anticonvulsants

Hydantoin anticonvulsants are structurally related to barbiturates. They have an allantoin heterocyclic base. Hydantoins slow the synaptic transmission by blocking sodium channels from recovering from the inactivated state, and inhibits neurons from firing. This stops the repeated excitation of cells that results in seizures.

Hydantoin anticonvulsants are used to treat a wide range of seizures types.