Phenytoin

Historical note and nomenclature
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By K K Jain MD

The era of antiepileptic drugs started with the introduction of bromides in 1857 and was followed by the discovery of the anticonvulsant effect of barbiturates in 1912. Hydantoins, structurally similar to barbiturates, followed as second generation antiepileptic agents. The main action of hydantoins is to prevent the spread of seizure activity by stabilizing the neuronal membranes through modulating ion fluxes. Phenytoin (diphenylhydantoin) was synthesized in 1908 (Biltz 1908) and was introduced in the treatment of epilepsy in 1938 (Merritt and Putnam 1938).

In This Article

Historical note and nomenclature
Pharmacology
Clinical trials
Indications
Contraindications
Goals and duration of treatment
Dosing
Precautions and use in special groups
Interactions
Adverse effects
References cited
Contributors