How does sumatriptan work?
Sumatriptan activates serotonin (5-HT) receptors, causing blood vessels in the brain to narrow and reducing the release of pain-causing substances. This helps relieve migraine symptoms.
What is sumatriptan used to treat?
Sumatriptan is commonly prescribed for:
- Migraines (with or without aura)
- Cluster headaches
Who can take sumatriptan?
Sumatriptan is suitable for most adults over 18 years old who suffer from migraines or cluster headaches.
Who might not be able to take sumatriptan?
Sumatriptan may not be suitable if you:
- Have heart disease, high blood pressure, or a history of stroke
- Have liver or kidney disease
- Have severe migraines with brainstem aura or hemiplegic migraines
- Are taking other migraine medications (such as ergotamine or other triptans)
Can I take sumatriptan if I’m pregnant or breastfeeding?
Sumatriptan isn’t usually recommended during pregnancy or while breastfeeding, but your doctor may prescribe it if the benefits outweigh the risks.
What if I miss a dose?
Sumatriptan is taken as needed at the onset of a migraine. If your symptoms return, you may take another dose after 2 hours, but do not exceed the maximum daily limit.
How effective is sumatriptan?
Sumatriptan is highly effective at relieving migraines when taken early in an attack. It usually starts working within 30 minutes (for tablets) or 10–15 minutes (for injections and nasal sprays).
What should I do if I take too much?
Taking too much sumatriptan can cause dizziness, high blood pressure, or serious heart problems. If you think you’ve taken too much, seek emergency medical help immediately.
What dose of sumatriptan is usually taken?
- For migraines: 50mg to 100mg at the onset of symptoms (maximum 300mg per day)
- For cluster headaches: 6mg injection (repeatable after 1 hour if needed, up to 12mg per day)
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What are the side effects of sumatriptan?
Common side effects include:
- Tingling or warmth in the body
- Drowsiness or dizziness
- Nausea
- Pressure or tightness in the chest or throat (temporary)
Serious side effects, such as chest pain, irregular heartbeat, or severe allergic reactions, require urgent medical attention.
How should I take sumatriptan?
Sumatriptan is available as tablets, nasal sprays, and injections. It should be taken at the first sign of a migraine or cluster headache.
When should sumatriptan be taken?
Sumatriptan should be taken as soon as migraine symptoms start but not as a preventive treatment.
What are the brand names for sumatriptan?
Sumatriptan is available as a generic medicine, but some branded versions include:
- Imigran
- Treximet (combined with naproxen in some countries)
Final thoughts
Sumatriptan is an effective treatment for migraines and cluster headaches, but it should only be used when needed. If you experience frequent migraines, speak to your doctor about preventive treatments. If side effects occur, seek medical advice.
