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Clinical data | |
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Trade names | Imitrex, others |
AHFS/Drugs.com | Monograph |
MedlinePlus | a601116 |
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Routes of administration | By mouth, subcutaneous, intranasal, transdermal |
Drug class | Antimigraine agent; Triptan; Serotonin 5-HT1B, 5-HT1D receptor, and 5-HT1F receptor agonist |
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Pharmacokinetic data | |
Bioavailability | 15% (oral); 96% (subcutaneous) |
Protein binding | 14–21% |
Metabolism | Monoamine oxidase (MAO) |
Elimination half-life | 2.5 hours |
Excretion | 60% urine; 40% feces |
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ECHA InfoCard | 100.130.518 |
Chemical and physical data | |
Formula | C14H21N3O2S |
Molar mass | 295.40 g·mol−1 |
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Sumatriptan, sold under the brand name Imitrex among others, is a medication used to treat migraine headaches and cluster headaches.[4][1] It is taken orally, intranasally, or by subcutaneous injection.[5] Therapeutic effects generally occur within three hours.[5] Sumatriptan is a serotonin (5-HT1B/1D) receptor agonist (triptan).[1]
The drug acts as a serotonin 5-HT1B, 5-HT1D, and 5-HT1F receptor agonism[6][7] and its common side effects include chest pressure, fatigue, vomiting, tingling, and vertigo. Serious side effects may include serotonin syndrome, heart attack, stroke, and seizures. With excessive use, medication overuse headaches may occur.[5] It is unclear if use during pregnancy or breastfeeding is safe.[8] The mechanism of action is not entirely clear. It is in the triptan class of medications.[5]
Sumatriptan was patented in 1982 and approved for medical use in 1992.[1][9] It is on the World Health Organization's List of Essential Medicines.[10] It is available as a generic medication.[4] In 2022, it was the 95th most commonly prescribed medication in the United States, with more than 6 million prescriptions.[11][12] It is also available as the combination product sumatriptan/naproxen.[13]
Rubio-BeltránLabastida-RamírezVillalón2018
was invoked but never defined (see the help page).