**Question:** Drug of choice in Acute migraine is

A. Sumatriptan
B. Valproic acid
C. Diazepam
D. Naproxen

**Core Concept:**
Acute migraine management involves the use of medications to alleviate symptoms and prevent further attacks. The choice of drug depends on various factors, including the type of migraine, patient's age, and comorbidities. Among the available options, sumatriptan is a selective agonist for 5-HT1B/1D receptors, which are involved in the vasoconstriction of meningeal blood vessels and the inhibition of neurogenic inflammation. This leads to the relief of migraine symptoms and is considered a first-line choice for the treatment of migraine.

**Why the Correct Answer is Right:**
Sumatriptan (Imitrex) is a triptan, a class of medications designed specifically for the treatment of migraine. Triptans primarily act on the 5-hydroxytryptamine (serotonin) receptors, specifically 5-HT1B/1D receptors, which are involved in the vasoconstriction of meningeal blood vessels and the inhibition of neurogenic inflammation. By binding to these receptors, sumatriptan helps alleviate migraine symptoms such as headache, nausea, and photophobia.

**Why Each Wrong Option is Incorrect:**

B. Valproic acid (Depakote) is an anticonvulsant and mood stabilizer used in the treatment of epilepsy and bipolar disorder. Although it has been tried for migraine prophylaxis, its efficacy in acute migraine treatment is limited, and it is not a first-line choice.

C. Diazepam (Valium) is a benzodiazepine with anxiolytic, sedative, and muscle relaxant properties. While it has been used in the past for migraine prophylaxis, its efficacy in acute migraine treatment is questionable, and it is not a preferred choice for acute migraine management.

D. Naproxen (Aleve) is a nonsteroidal anti-inflammatory drug (NSAID) used for pain relief and inflammation management in various conditions. While naproxen may provide some relief for mild to moderate migraine pain, it is not a selective 5-HT1B/1D agonist like sumatriptan, which is crucial for the treatment of migraine.

**Clinical Pearl:**

A migraine is a primary headache disorder characterized by throbbing pain, sensitivity to light and sound, and potential accompanying symptoms such as nausea and vomiting. The use of selective 5-HT1B/1D agonists like sumatriptan is crucial for effective acute migraine management. In contrast, other options like valproic acid, diazepam, and naproxen have limited efficacy in treating migraine symptoms and are not the preferred choice for acute migraine management.