Brain & Nervous System Migraines Treatment Key Facts about Imitrex for Migraines Including Side Effects Risks and Precautions of Imitrex and Its Use in Pregnancy and Breastfeeding By Teri Robert Teri Robert LinkedIn Teri Robert is a writer, patient educator, and patient advocate focused on migraine and headaches. Learn about our editorial process Updated on August 05, 2021 Medically reviewed Verywell Health articles are reviewed by board-certified physicians and healthcare professionals. These medical reviewers confirm the content is thorough and accurate, reflecting the latest evidence-based research. Content is reviewed before publication and upon substantial updates. Learn more. by Diana Apetauerova, MD Medically reviewed by Diana Apetauerova, MD LinkedIn Diana Apetauerova, MD, is board-certified in neurology with a subspecialty in movement disorders. She is an associate clinical professor of neurology at Tufts University. Learn about our Medical Expert Board Print Imitrex (sumatriptan) is a triptan medication used to relieve acute migraines. See whether this medication is a good option for you, and what to expect if your healthcare provider prescribes it. JGI / Jamie Grill / Blend Images / Getty Images How Do I Take Imitrex for My Migraines? Imitrex is available as a nasal spray, tablet, or subcutaneous injection—given in your fatty tissue. The nasal spray and injection are helpful for people who have severe nausea and vomiting with their migraines. Talk with your healthcare provider about what the best formulation is for you. Who Is Not a Candidate for Imitrex? Certain people should not take Imitrex for their migraines. This is why it's important to discuss all your health problems and all your medications, including over-the-counter medications, vitamins, and supplements, with your healthcare provider. People who are not candidates for Imitrex include those with: Presence or risk factors for coronary artery disease, stroke, or peripheral vascular disease Uncontrolled hypertension Basilar or hemiplegic migraines Severe liver impairment Allergy to sumatriptan or its ingredients Imitrex may also interact with certain medications. For instance, a person should not take Imitrex within two weeks of discontinuation of monoamine-oxidase inhibitor therapy. Also, a person should not take Imitrex within 24 hours of taking a separate Imitrex dose or any other triptan. Likewise, a person should not take Imitrex within 24 hours of taking any ergotamine medication, such as DHE or Migranal. Can I Take Imitrex When Pregnant or Breastfeeding? Due to limited studies available, it's not known whether Imitrex can harm an unborn baby. Be sure to speak with your healthcare provider if you are pregnant or could become pregnant during treatment. In terms of breastfeeding, the American Academy of Pediatrics, or AAP, lists sumatriptan as compatible with breastfeeding. That said, the scientific evidence is still limited—so speak with your practitioner first if you are breastfeeding. What are the Common Side Effects of Taking Imitrex for Migraines? Talk with your healthcare provider if you find any side effects bothersome or persistent. Some common side effects include: Tingling or numbness in fingers and toesDizzinessFlushing of faceWeaknessDrowsinessFeeling tired Also, if you are feeling dizzy or drowsy, don't drive or operate heavy machinery, or do anything that requires you to think clearly. What are the Serious Side Effects of Taking Imitrex for Migraines? Imitrex can cause a heart attack or other heart problems. It's important to seek emergent medical attention if you develop any of these symptoms: Discomfort in the center of your chest that lasts for more than a few minutes or that is recurrent Chest pain or pain in arms, back, neck, jar, or stomachTrouble breathing or catching airSweatingNausea or vomitingLightheadedness In addition, Imitrex can lead to a serious condition called serotonin syndrome—this is more likely to occur when Imitrex is taken with other medications that increase serotonin levels in the body, like the antidepressants SSRIs or SNRIs. Call your healthcare provider right away if you experience symptoms of serotonin syndrome like: Nervous system changes like confusion, hallucinations, agitation, or comaHallucinationsFast heartbeatChange in blood pressureIncrease in body temperatureTight musclesProblems walkingNausea, vomiting, or diarrheaComa Other serious health problems associated with Imitrex include: Raynaud's phenomenon: color and sensory change in fingers and toes Gut ischemia: poor blood flow to your stomach and intestines Peripheral vascular ischemia: poor blood flow to legs and feet Allergic reaction: may cause hives, wheezing, problems breathing, or swelling of the tongue, mouth, or throat What Does This Mean for Me As a Migraineur? Imitrex is an effective migraine therapy, and the fact that it comes in different forms is appealing for many migraineurs. That being said, as with any medication, there are certain risks and serious side effects you should be aware of—this way you can take Imitrex comfortably and safely. Remain proactive in your migraine health. The material on this page is for educational purposes only and should not replace the advice of a licensed physician. Was this page helpful? Thanks for your feedback! Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Sign Up You're in! Thank you, {{form.email}}, for signing up. There was an error. Please try again. What are your concerns? Other Inaccurate Hard to Understand Submit 0 Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Hutchinson S, Marmura MJ, Calhoun A, Lucas S, Silberstein S, Peterlin BL. Use of common migraine treatments in breast-feeding women: A summary of recommendations. Headache. 2013;53(4):614-27. doi:10.1111/head.12064 Rothrock JF, Friedman DI. Triptan therapy for acute migraine. American Headache Society. U.S. Food and Drug Administration. Imitrex (sumatriptan succinate): Prescription information. Published November 2013.