us-abfm MCQ (SBA): Migraine prophylaxis

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ModerateNeurologyMigraine prophylaxisus-abfmus-abimus-usmle-step-2

A 35-year-old woman presents with unilateral throbbing headache, photophobia, and nausea that last several hours. Neurologic exam is normal. She has 3 to 4 episodes per month. What is the most appropriate preventive therapy?

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