Which pharmacologic class is indicated to prevent recurrent convulsions in patients with epilepsy and CNS injuries?

• A. Antiplatelets
• B. Antihistamines
• C. Anticonvulsants (Class)
• D. Sedatives

Answer: (C)

Preventing recurrent convulsions in epilepsy and after CNS injury relies on drugs that dampen brain excitability and stabilize neuronal activity. Anticonvulsants achieve this by enhancing inhibitory neurotransmission and/or reducing excitatory firing—commonly through boosting GABA effects and blocking voltage-gated sodium and calcium channels. This combination lowers the likelihood that neurons will misfire and helps prevent the spread of abnormal electrical activity that causes seizures. That’s why anticonvulsants are the appropriate choice for seizure prophylaxis. Other classes, like antiplatelets, antihistamines, or sedatives, don’t target the underlying hyperexcitability of neural networks and aren’t used for preventing recurrent seizures.