A 28-year-old man presents to the clinic with complaints of severe, unilateral headaches that have been occurring for the past two weeks. He describes the pain as an excruciating, stabbing sensation located around his right eye. Each episode lasts about 45 minutes and occurs multiple times a day, often waking him from sleep. He also reports associated tearing, nasal congestion, and drooping of the eyelid on the same side as the headache. His neurological examination is otherwise unremarkable. Which of the following is the most likely diagnosis?

A 34-year-old woman with a history of episodic migraines presents to her primary care physician seeking treatment options. She reports experiencing migraines approximately six times per month, characterized by unilateral throbbing headaches accompanied by nausea and sensitivity to light. She has tried over-the-counter medications with limited relief and is interested in exploring newer therapies. Question: Which of the following medications is an oral calcitonin gene-related peptide (CGRP) receptor antagonist approved for the acute treatment of migraine?