Feline epilepsy.

In approximately two-thirds of the epileptic cats in this article, an idiopathic epilepsy had to be assumed. It began between six and 36 months of age with a single seizure, which usually occurred during rest or sleep. Symptomatic epilepsy was frequently observed during the first two years of life and in old age, beginning frequently with multiple seizures or status epilepticus and less often during sleep or rest. In both types, grand mal seizures are predominant. Seizure clusters or status epilepticus caused extensive neuron necroses and scleroses in Ammon's horn. Diazepana and phenobarbital are antiepileptics of first choice for the cat; primidone and phenytoin are less suitable.