Which of the following antiseizure medications does NOT have status epilepticus as an indication?

Ethosuximide is primarily indicated for the treatment of absence seizures and is not typically used for status epilepticus. Status epilepticus is a condition characterized by prolonged seizures or a series of seizures without recovery in between, and the management of this condition usually involves medications that have rapid onset of action and effectiveness in terminating seizures.

Phenytoin, phenobarbital, and diazepam are all agents that can be utilized in the management of status epilepticus. Phenytoin is often used for its anticonvulsant properties in controlling generalized tonic-clonic seizures and is effective in preventing further seizures during status. Phenobarbital is also a long-standing treatment option for status epilepticus due to its sedative and anticonvulsant effects. Diazepam, being a benzodiazepine, is frequently the first line for acute seizure control because of its quick action.

In summary, ethosuximide stands out as it does not have an indication for status epilepticus, as its primary role is in managing absence seizures specifically, making it the correct choice in this context.