To prevent seizures after brain injury, clinicians typically prescribe which class of medication?

• A. Beta blockers
• B. Calcium channel blockers
• C. Ginkgo supplements
• D. Anticonvulsants (Class)

Answer: (D)

Anticonvulsants are used to prevent seizures after brain injury because they reduce neuronal excitability and stabilize brain activity during a period when the brain is most prone to seizures. They work by dampening excessive electrical discharge, either by blocking ion channels or enhancing inhibitory neurotransmission, which raises the threshold for seizure activity. In practice, anticonvulsants are commonly given after brain injury to prevent early post-traumatic seizures, usually for the first week or so; long-term use is based on specific risk factors. Other options like beta blockers, calcium channel blockers, or Ginkgo supplements do not reliably prevent seizures and are not used for this purpose.