system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 36-year-old woman comes to the physician because of multiple episodes of headache over the past 3 months. The headaches last the entire day and are unilateral and throbbing. During the headaches, she has severe nausea and is unable to work and perform her daily activities. She has noticed that she becomes unusually hungry prior to the onset of headache. She locks herself in a dark room, takes ibuprofen, and avoids going out until the headache subsides. However, over the past month, the headaches have increased to 2–3 times a week and become more intense. She has hypertension treated with amlodipine. Her temperature is 37°C (98.6°F), pulse is 80/min, and blood pressure is 128/76 mm Hg. Physical and neurologic examinations show no abnormalities. Which of the following is the most appropriate therapy for long-term prevention of headaches in this patient?
assistant
Propranolol