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Ubrelvy vs Imitrex (sumatriptan): How do they compare?

Medically reviewed by Carmen Pope, BPharm. Last updated on Oct 1, 2024.

Official Answer by Drugs.com

Ubrelvy and Imitrex are both oral tablets used to treat migraine, but there are differences in the way they work. Ubrelvy prevents a protein called CGRP thought to play a role in migraine attacks from binding to its receptor and Imitrex is thought to bind to serotonin 5‑HT1B/1D receptors, and inhibit pro-inflammatory substances. Although no head-to-head comparison trials compare Ubrelvy to Imitrex (sumatriptan), indirect evidence suggests that overall, Ubrelvy is no more effective, and may be inferior to Imitrex at relieving migraine in adults who are able to tolerate triptans. For those adults with moderate-to-severe migraine attacks that cannot tolerate triptans or who have found them ineffective, Ubrelvy is beneficial for treating migraines compared to no treatment. Ubrelvy is associated with fewer side effects than Imitrex, but is more expensive, costing almost twice as much.

Ubrelvy can be given together with Imitrex to treat the same migraine event and this combination is well tolerated. Pharmacokinetic research shows slight alterations in pharmacokinetic parameters such as time to maximum concentration, and mean maximum plasma concentration, but these are not considered clinically relevant.

Ubrelvy Vs Imitrex (sumatriptan): How do they work?

Ubrelvy belongs to the class of medicines known as CGRP inhibitors. CGRP stands for calcitonin gene-related peptide (CGRP) receptor antagonists (also known as gepants) and Ubrelvy works by preventing CGRP from attaching to CGRP receptors on nerve endings. CGRP is a protein that is thought to play a role in migraine attacks by causing pain, dilation of blood vessels, and inflammation. By preventing CGRP from binding to its receptor, Ubrelvy stops migraine pain and other symptoms.

Imitrex (sumatriptan) belongs to the class of medicines known as Triptans, and are thought to work by binding to serotonin 5‑HT1B/1D receptors, inhibiting pro-inflammatory substances, and constricting cranial blood vessels. Imitrex works in a different way to CGRP inhibitors, such as Ubrelvy.

Related questions

Are there any trials that compare Ubrelvy with Imitrex (sumatriptan)

Head-to-head trials comparing Ubrelvy with sumatriptan are lacking. However, indirect evidence suggests:


References
  • Jakate A, Boinpally R, Butler M, Lu K, McGeeney D, Periclou A. Evaluation of the Pharmacokinetic Interaction of Ubrogepant Coadministered With Sumatriptan and of the Safety of Ubrogepant With Triptans. Headache. 2020 Jul;60(7):1340-1350. doi: 10.1111/head.13862. Epub 2020 Jun 23. PMID: 32573795; PMCID: PMC7496299
  • A look at acute therapies for migraine. Institute for clinical and economic review. Feb 2020. https://icer.org/wp-content/uploads/2020/10/Acute-Migraine-RAAG-022420_-1.pdf

Read next

How long does Imitrex (sumatriptan) take to work?

Imitex (sumatriptan) can start to work within 30 minutes of taking a dose. However, it may take a few hours for you to notice the full effects. Continue reading

Why does Imitrex (sumatriptan) make me feel weird?

Imitrex (sumatriptan) can cause a variety of side effects, which may make you feel weird after taking it. It is not fully understood what causes these side effects, but some could be related to how Imitrex affects blood vessels and nerves. Continue reading

Can Imitrex (sumatriptan) cause rebound headaches?

Yes, Imitrex (sumatriptan) can cause rebound headaches (also known as medication-overuse headaches). Rebound headaches are more likely to occur if you take Imitrex alone or a combination of Imitrex and other headache medications (e.g., opioids, analgesics) for 10 or more days per month. Continue reading

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