Ubrelvy can be taken as a 50 mg or 100 mg dose orally when migraine symptoms begin. If needed, a second dose may be taken at least 2 hours after the initial dose. The maximum dosage allowed in a 24-hour period is 200 mg. It is recommended not to treat more than 8 migraine episodes with Ubrelvy in a 30-day period as the safety beyond this has not been established. Always follow the dosage prescribed by a doctor, especially if you have liver or kidney issues where dosage adjustments may be necessary.