Which drug is a benzodiazepine commonly used for seizure control?

Diazepam is a benzodiazepine that is used for seizure control, particularly in emergency settings. It works by enhancing the effect of the neurotransmitter gamma-aminobutyric acid (GABA) at the GABA-A receptor, which leads to increased neuronal inhibition and a reduction in neuronal excitability. This mechanism is particularly beneficial in controlling types of seizures, including status epilepticus, where rapid action is crucial.

The other drugs listed do not fall under the benzodiazepine category or serve the specific purpose of seizure control in the same context. Topiramate and carbamazepine are both anticonvulsants but work through different mechanisms and are not classified as benzodiazepines. Phenytoin is another anticonvulsant that also has a different mechanism of action focused on stabilizing neuronal membranes. Therefore, diazepam is distinctly recognized and utilized for its benzodiazepine properties in the immediate management of seizures.