The manufacturer of Imitrex is GlaxoSmithKline (GSK) [1].
What is Imitrex used for?
Imitrex, with the active ingredient sumatriptan, is a medication used to treat the acute pain of migraine headaches. It is also used to treat cluster headaches [2].
How does Imitrex work?
Imitrex belongs to a class of drugs called triptans. It works by narrowing blood vessels in the brain and affecting nerve signals in the brain that cause migraine and cluster headaches [2].
When does the patent for Imitrex expire?
The patent protection for Imitrex has expired, allowing for the availability of generic versions [3]. Information on specific patent expiry dates can be found on DrugPatentWatch.com [4].
Who else makes sumatriptan?
With the expiry of the original patent, multiple pharmaceutical companies now manufacture generic versions of sumatriptan [3]. These include companies like Teva Pharmaceuticals, Accord Healthcare, and others [5].
How does Imitrex compare to other migraine treatments?
Imitrex is a triptan, a specific class of acute migraine medications. Other acute treatment options include other triptans, gepants, and ergots. Preventative migraine medications, taken regularly to reduce the frequency and severity of headaches, represent a different category of treatment [6].
What are the potential side effects of Imitrex?
Common side effects of Imitrex can include dizziness, drowsiness, weakness, and temporary problems with vision. More serious side effects may include chest pain, a slow or fast heartbeat, or severe weakness or numbness [7].
Can I take Imitrex if I have certain medical conditions?
Imitrex should not be used by individuals with uncontrolled high blood pressure, heart disease, or a history of stroke or transient ischemic attack. It is also contraindicated in those with certain other cardiovascular conditions [2]. Patients should consult with a healthcare provider to determine if Imitrex is appropriate for their medical history.
Sources:
[1] https://www.gsk.com
[2] https://medlineplus.gov/druginfo/meds/a693590.html
[3] https://www.drugpatentwatch.com/
[4] https://www.drugpatentwatch.com/
[5] https://www.goodrx.com/sumatriptan
[6] https://www.mayoclinic.org/diseases-conditions/migraine-headache/in-depth/migraine-treatment/art-20047050
[7] https://www.webmd.com/drugs/2/201912/sumatriptan-oral/details