Phenytoin is prescribed for which type of seizures?

• A. Generalized Seizures
• B. Absence Seizures
• C. Partial Seizures
• D. Myoclonic Seizures

Answer: (C)

Phenytoin works by stabilizing neuronal membranes through blockade of voltage-gated sodium channels, which reduces the rapid, repetitive firing that underlies seizure activity. Partial (focal) seizures originate in a specific brain region, so dampening excitability in that area helps prevent the seizure from spreading. This makes phenytoin particularly effective for treating focal seizures. Absence seizures involve different thalamocortical circuits and are best treated with drugs like ethosuximide; myoclonic and other generalized seizures are managed with different agents depending on the case. So, the drug is most appropriately prescribed for partial seizures.