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What Is Rimegepant?

Rimegepant is a prescription migraine medication belonging to the calcitonin gene-related peptide, or CGRP, receptor antagonist class. It is marketed under the brand name Nurtec ODT and is available as a 75 mg orally disintegrating tablet. Rimegepant is approved for the acute treatment of migraine with or without aura and the preventive treatment of episodic migraine in adults. It can be used either when a migraine attack occurs or on a scheduled basis for prevention. Rimegepant does not belong to the triptan class and does not rely on blood vessel constriction as its primary mechanism. Dosing depends on the treatment goal.

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What Is Rimegepant?

Rimegepant is a prescription migraine medication belonging to the calcitonin gene-related peptide, or CGRP, receptor antagonist class. It is marketed under the brand name Nurtec ODT and is available as a 75 mg orally disintegrating tablet. Rimegepant is approved for the acute treatment of migraine with or without aura and the preventive treatment of episodic migraine in adults. It can be used either when a migraine attack occurs or on a scheduled basis for prevention. Rimegepant does not belong to the triptan class and does not rely on blood vessel constriction as its primary mechanism. Dosing depends on the treatment goal.

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How Does Rimegepant Work?

Rimegepant blocks receptors for calcitonin gene-related peptide, a signaling molecule involved in migraine pain pathways. CGRP participates in nerve signaling and vascular responses associated with migraine attacks. By preventing CGRP from activating its receptors, rimegepant can reduce pain and other symptoms during an acute migraine. When taken on a preventive schedule, it can also reduce migraine frequency in eligible adults. Rimegepant does not permanently cure migraine or prevent every future attack. Its action differs from triptans, which affect certain serotonin receptors and can cause blood vessel constriction.

What Types of Migraine Does Rimegepant Treat?

Rimegepant is approved for acute treatment of migraine attacks with or without aura in adults. Migraine attacks can involve moderate to severe headache, nausea, sensitivity to light or sound, and sometimes temporary visual or sensory disturbances. Rimegepant is also approved for preventive treatment of episodic migraine in adults. Episodic migraine generally involves fewer than 15 headache days per month. The medication is not specifically approved for preventive treatment of chronic migraine or for cluster headaches. A healthcare professional evaluates headache patterns, previous treatment response, medical conditions, and possible medication interactions before prescribing it.

How Should Rimegepant Be Taken?

For acute migraine treatment, the recommended dose is one 75 mg orally disintegrating tablet as needed. The maximum dose is 75 mg within 24 hours, and the safety of taking more than 18 doses in 30 days has not been established. For episodic migraine prevention, the recommended dose is 75 mg every other day. Use dry hands to remove the tablet from its blister packaging and place it on or under the tongue, allowing it to dissolve without water. Rimegepant can be taken with or without food. Strong CYP3A4 inhibitors and certain enzyme inducers should be avoided, while other interactions may require at least 48 hours between doses.

What Are the Side Effects and Warnings of Rimegepant?

Common adverse effects include nausea and, during preventive treatment, abdominal discomfort or indigestion. Serious hypersensitivity reactions, including anaphylaxis, rash, and breathing difficulties, have been reported and may occur days after administration. New or worsening hypertension and Raynaud's phenomenon have also been reported with CGRP receptor antagonists. Rimegepant should be avoided in severe liver impairment and end-stage kidney disease. Certain medications can increase or reduce rimegepant exposure through metabolic or transport pathways. Patients should report significant allergic symptoms, concerning blood pressure changes, or painful color changes in the fingers or toes.

Common Questions About Rimegepant

Is rimegepant the same as Nurtec ODT?

Yes. Nurtec ODT is the brand name for rimegepant, an orally disintegrating CGRP receptor antagonist used for migraine treatment and prevention.

Can rimegepant prevent migraines?

Yes. Rimegepant is approved for preventive treatment of episodic migraine in adults when taken at 75 mg every other day.

How many rimegepant tablets can be taken in one day?

The maximum recommended dose is one 75 mg tablet within 24 hours. The safety of more than 18 doses in 30 days has not been established.

Can rimegepant cause high blood pressure?

Yes. New or worsening hypertension has been reported with CGRP receptor antagonists, including rimegepant. Patients should discuss blood pressure changes with their clinician.

References

DailyMed - NURTEC ODT (rimegepant sulfate) orally disintegrating tablet. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=9ef08e09-1098-35cc-e053-2a95a90a3e1d. Date Accessed November 3, 2026.

NURTEC ODT Prescribing Information. Pfizer. https://labeling.pfizer.com/ShowLabeling.aspx?id=19036. Date Accessed November 3, 2026.

Rimegepant. LiverTox. https://www.ncbi.nlm.nih.gov/books/NBK572432/. Date Accessed November 3, 2026.

Rimegepant. MedlinePlus. https://medlineplus.gov/druginfo/meds/a620031.html. Date Accessed November 3, 2026.

Rimegepant. PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/Rimegepant. Date Accessed November 3, 2026.