Which medication is commonly used to treat trigeminal neuralgia?

Which medication is commonly used to treat trigeminal neuralgia?

• A. Gabapentin
• B. Amitriptyline
• C. Baclofen
• D. Carbamazepine

Answer: (D)

Trigeminal neuralgia is best treated with a medication that reduces hyperexcitability of the trigeminal nerve. Carbamazepine fits this role well because it blocks voltage-gated sodium channels in overactive nerve fibers, stabilizing their membranes and sharply decreasing the frequency and intensity of the sudden, shock-like facial pain attacks typical of TN. Clinically, it’s given starting at a low dose and titrated up to achieve pain relief while monitoring for side effects such as dizziness, drowsiness, nausea, hyponatremia, and rare blood disorders. While other agents like gabapentin, amitriptyline, or baclofen can be used for neuropathic pain or muscle symptoms in some contexts, they do not provide the same level of proven relief for trigeminal neuralgia as carbamazepine.

Trigeminal neuralgia is best treated with a medication that reduces hyperexcitability of the trigeminal nerve. Carbamazepine fits this role well because it blocks voltage-gated sodium channels in overactive nerve fibers, stabilizing their membranes and sharply decreasing the frequency and intensity of the sudden, shock-like facial pain attacks typical of TN. Clinically, it’s given starting at a low dose and titrated up to achieve pain relief while monitoring for side effects such as dizziness, drowsiness, nausea, hyponatremia, and rare blood disorders. While other agents like gabapentin, amitriptyline, or baclofen can be used for neuropathic pain or muscle symptoms in some contexts, they do not provide the same level of proven relief for trigeminal neuralgia as carbamazepine.