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MigraineTwo labels compared

Nurtec vs Imitrex

Nurtec and Imitrex both carry the same core indication - acute treatment of migraine with or without aura in adults - from two different decades of pharmacology. Imitrex is the original triptan, generic for years. Nurtec is a gepant with a second, preventive indication. The sharpest difference sits in the contraindication sections, and this page quotes both.

Nurtec ODT

Ingredient
Rimegepant
Approved for
Acute treatment of migraine, and prevention of episodic migrainecovers migraine
Supply
Prescription
Boxed warning
None
Pharmacy cost
$128.75 per tablet, capsule or pen, brandwhat pharmacies pay to buy it, not the price at the counter
Pfizer Laboratories Div Pfizer Inc. Label version 32, effective 4 June 2026.

Imitrex tablets

Ingredient
Sumatriptan
Approved for
Acute treatment of migrainecovers migraine
Supply
Prescription
Boxed warning
None
Pharmacy cost
$72.40 per tablet, capsule or pen, brandwhat pharmacies pay to buy it, not the price at the counter
GlaxoSmithKline LLC. Label version 24, effective 9 December 2025.
01From the FDA label

Side by side, straight from the labels

Generated from the two source labels, not typed out by hand, so it cannot drift from what the regulator approved. Rows where both labels say exactly the same thing are marked.

Active ingredientNurtec ODTRimegepantCGRP receptor antagonist (gepant)Imitrex tabletsSumatriptanSerotonin 5-HT1B/1D receptor agonist (triptan)
Approved forNurtec ODTAcute treatment of migraine, and prevention of episodic migraineImitrex tabletsAcute treatment of migraine
Supplysame in bothNurtec ODTPrescriptionImitrex tabletsPrescription
What pharmacies payAcquisition cost, not retailNurtec ODT$128.75 per tablet, capsule or pen, brandImitrex tablets$72.40 per tablet, capsule or pen, brand
Boxed warningsame in bothNurtec ODTNoneImitrex tabletsNone
What the FDA approved it forNurtec ODT
  • acute treatment of migraine with or without aura in adults
  • preventive treatment of episodic migraine in adults Acute Treatment of Migraine NURTEC ODT is indicated for the acute treatment of migraine with or without aura in adults. Preventive Treatment of Episodic Migraine NURTEC ODT is indicated for the preventive treatment of episodic migraine in adults.
Imitrex tablets
  • Safety and effectiveness of IMITREX tablets have not been established for cluster headache. IMITREX is a serotonin (5-HT 1B/1D) receptor agonist (triptan) indicated for acute treatment of migraine with or without aura in adults.
  • Use only if a clear diagnosis of migraine headache has been established.
  • Not indicated for the prophylactic therapy of migraine attacks.
  • Not indicated for the treatment of cluster headache.
Forms and strengthsNurtec ODT
  • Orally disintegrating tablets: white to off-white, circular, and debossed with the symbol, each containing 75 mg of rimegepant.
  • NURTEC ODT orally disintegrating tablets: 75 mg
Imitrex tablets
  • 25-mg Tablets: White, triangular-shaped, film-coated, and debossed with "I" on one side and "25" on the other.
  • Each tablet contains 70 mg of sumatriptan succinate equivalent to 50 mg of sumatriptan. 100-mg Tablets: Pink, triangular-shaped, film-coated, and debossed with "IMITREX 100" on one side and a chevron shape (^) on the other.
  • Each tablet contains 140 mg of sumatriptan succinate equivalent to 100 mg of sumatriptan.
  • Tablets: 25 mg, 50 mg, and 100 mg
How the label says it is takenNurtec ODT
  • Recommended dosage for acute treatment of migraine: 75 mg taken orally, as needed.
  • The safety of using more than 18 doses in a 30-day period has not been established.
  • Recommended dosage for preventive treatment of episodic migraine: 75 mg taken orally every other day.
  • The maximum dose in a 24-hour period is 75 mg.
  • NURTEC ODT can be taken with or without food. Recommended Dosing for Acute Treatment of Migraine The recommended dose of NURTEC ODT is 75 mg taken orally, as needed. The maximum dose in a 24-hour period is 75 mg. The safety of using more than 18 doses in a 30-day period has not been established. NURTEC ODT can be taken with or without food.
Imitrex tablets
  • Single dose of 25-mg, 50-mg, or 100-mg tablet.
  • A second dose should only be considered if some response to the first dose was observed. Separate doses by at least 2 hours.
  • Maximum dose in a 24-hour period: 200 mg.
  • Maximum single dose should not exceed 50 mg in patients with mild to moderate hepatic impairment. Dosing Information The recommended dose of IMITREX tablets is 25 mg, 50 mg, or 100 mg. Doses of 50 mg and 100 mg may provide a greater effect than the 25-mg dose, but doses of 100 mg may not provide a greater effect than the 50-mg dose. Higher doses may have a greater risk of adverse reactions.
Most common adverse reactionsNurtec ODT
  • most common adverse reaction in Study 1 was nausea (2% in patients who received NURTEC ODT compared to 0.4% of patients who received placebo).
  • most common adverse reactions (occurring in at least 2% of rimegepant-treated patients and at a frequency of at least 1% higher than placebo) in Study 2 were nausea (2.7% in patients who received rimegepant compared with 0.8% of patients who received placebo) and abdominal pain/dyspepsia (2.4% in patients who received rimegepant compared with 0.8% of patients who received placebo).
Imitrex tablets
  • Most common adverse reactions (≥2% and >placebo) were paresthesia, warm/cold sensation, chest pain/tightness/pressure and/or heaviness, neck/throat/jaw pain/tightness/pressure, other sensations of pain/pressure/tightness/heaviness, vertigo, and malaise/fatigue.
Warnings and precautionsNurtec ODT
  • Hypersensitivity Reactions: If a serious hypersensitivity reaction occurs, discontinue NURTEC ODT and initiate appropriate therapy. Severe hypersensitivity reactions have included anaphylaxis, dyspnea, and rash, and can occur days after administration.
  • Hypertension: New-onset or worsening of pre-existing hypertension may occur.
  • Raynaud's Phenomenon: New-onset or worsening of pre-existing Raynaud's phenomenon may occur. Hypersensitivity Reactions Serious hypersensitivity reactions, including anaphylaxis, dyspnea, and rash, have occurred in patients treated with NURTEC ODT. Hypersensitivity reactions can occur days after administration, and delayed serious hypersensitivity has occurred.
Imitrex tablets
  • Myocardial ischemia/infarction and Prinzmetal's angina: Perform cardiac evaluation in patients with multiple cardiovascular risk factors.
  • Arrhythmias: Discontinue IMITREX if occurs.
  • Chest/throat/neck/jaw pain, tightness, pressure, or heaviness: Generally not associated with myocardial ischemia; evaluate for coronary artery disease in patients at high risk.
  • Cerebral hemorrhage, subarachnoid hemorrhage, and stroke: Discontinue IMITREX if occurs.
  • Gastrointestinal ischemic reactions and peripheral vasospastic reactions: Discontinue IMITREX if occurs.
  • Medication overuse headache: Detoxification may be necessary.
  • Serotonin syndrome: Discontinue IMITREX if occurs.
  • Seizures: Use with caution in patients with epilepsy or a lowered seizure threshold. Myocardial Ischemia, Myocardial Infarction, and Prinzmetal's Angina The use of IMITREX tablets is contraindicated in patients with ischemic or vasospastic CAD.
ContraindicationsNurtec ODT
  • NURTEC ODT is contraindicated in patients with a history of hypersensitivity reaction to rimegepant, NURTEC ODT, or any of its components.
  • Reactions have included anaphylaxis and delayed serious hypersensitivity.
Imitrex tablets
  • History of coronary artery disease or coronary artery vasospasm
  • Wolff-Parkinson-White syndrome or other cardiac accessory conduction pathway disorders
  • History of stroke, transient ischemic attack, or hemiplegic or basilar migraine
  • Peripheral vascular disease
  • Ischemic bowel disease
  • Uncontrolled hypertension
  • Recent (within 24 hours) use of another 5-HT 1 agonist (e.g., another triptan) or of an ergotamine-containing medication
  • Concurrent or recent (past 2 weeks) use of monoamine oxidase-A inhibitor
Drug interactionsNurtec ODT
  • Strong CYP3A4 Inhibitors: Avoid concomitant administration.
  • Moderate CYP3A4 Inhibitors: Avoid another dose within 48 hours when administered with a moderate CYP3A4 inhibitor.
  • Strong and Moderate CYP3A Inducers: Avoid concomitant administration.
  • Potent Inhibitors of P-gp: Avoid another dose of NURTEC ODT within 48 hours when administered with a potent P-gp inhibitor. CYP3A4 Inhibitors Concomitant administration of NURTEC ODT with strong inhibitors of CYP3A4 results in a significant increase in rimegepant exposure. Avoid concomitant administration of NURTEC ODT with strong inhibitors of CYP3A4.
Imitrex tablets
  • Ergot-Containing Drugs Ergot-containing drugs have been reported to cause prolonged vasospastic reactions.
  • Because these effects may be additive, use of ergotamine-containing or ergot-type medications (like dihydroergotamine or methysergide) and IMITREX tablets within 24 hours of each other is contraindicated. Monoamine Oxidase-A Inhibitors MAO‑A inhibitors increase systemic exposure by 7-fold.
  • Therefore, the use of IMITREX tablets in patients receiving MAO‑A inhibitors is contraindicated. Other 5-HT 1 Agonists Because their vasospastic effects may be additive, coadministration of IMITREX tablets and other 5‑HT 1 agonists (e.g., triptans) within 24 hours of each other is contraindicated.
Label versionNurtec ODT4 June 2026Imitrex tablets9 December 2025
02Written by us

Two classes, one shared indication

Imitrex is a serotonin 5-HT1B/1D receptor agonist - a triptan. Nurtec is a CGRP receptor antagonist - a gepant. Both labels cover the acute treatment of migraine with or without aura in adults; Nurtec's adds preventive treatment of episodic migraine, while Imitrex's states it is not indicated for prophylactic therapy.

03Written by us

The contraindication sections are different in kind

The Imitrex list is long and led by the cardiovascular system: history of coronary artery disease or vasospasm, stroke or transient ischemic attack, peripheral vascular disease, ischemic bowel disease, uncontrolled hypertension, Wolff-Parkinson-White syndrome, recent use of another triptan or an ergotamine, and monoamine oxidase-A inhibitor use.

The Nurtec list is one item: hypersensitivity to rimegepant or the product's components. This page reports the difference between the documents; what it means for any particular person is a clinical question, and the reasons behind each list live in the full labels.

04Written by us

Dosing and supply

Imitrex tablets come in 25, 50 and 100 mg, with an optional second dose after at least 2 hours if the first showed some response, and a 200 mg daily maximum; generic sumatriptan has been approved for years, with 11 generic applications in the register. Nurtec is a single 75 mg orally disintegrating tablet as needed, 75 mg maximum per day, brand-only.

05Written by us

What this page does not tell you

It does not say which medication anyone should take for an attack. The two documents were written decades apart on separate evidence, and neither compares itself to the other. The choice belongs to a prescriber who knows the person's cardiovascular history and everything else these labels ask about.

06Written by us

Common questions

Is Nurtec safer than Imitrex?
That is not a question these documents answer. What can be said from the labels is narrower: their contraindication lists differ sharply - Imitrex's is long and cardiovascular, Nurtec's names only hypersensitivity. What that difference means for a particular person is a clinical judgement.
Is there a generic Nurtec the way there is generic sumatriptan?
No. The register lists 11 approved generic applications for sumatriptan tablets and none for rimegepant. The pricing table above shows what that difference does to acquisition cost.
Can they be taken together?
Neither label describes combined use of a gepant and a triptan. Imitrex's label does contraindicate use within 24 hours of another triptan or ergotamine; questions about combining classes belong to a prescriber.
07

Sources

Every fact above comes from one of these documents. The date is the effective date of the label version this page was built from.

Each stripe is one section of the label, each division in a stripe one entry in that section.

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Other comparisons in this category

Page last updated 29 August 2026

Compiled by the HealthyStudy editorial team from FDA source documents. No medical reviewer is credited on this page, because none reviewed it.