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Sumatriptan

Medication triptan pain & fever
Aka: Imigran
Brands seen in Singapore: Imigran, Sumatran, Sumason
Not medical advice. Check with your doctor or pharmacist before you start, stop or change the timing of anything you take.
How to use
What it’s for
HealthHub: to stop a migraine attack after it begins
When to take
HealthHub: at the start of an attack · works in ~30 min
Take with
HealthHub: with or without food
Pros & cons
Pros
  • HealthHub: it usually works within 30 minutes
  • HealthHub: a second dose is possible after 2 hours
  • SG register lists 50 mg tablets from three brands
Cons
  • HealthHub: it stops an attack, it does not prevent one
  • HealthHub: sleepiness, dizziness, flushing, tingling
  • HealthHub: over 9–10 days a month can worsen headache
Sources
  1. HSA — Listing of Registered Therapeutic Products (data.gov.sg dataset d_767279312753558cbf19d48344577084), Forensicclassification column; all 5,511 rows cached at /tmp/hsa_all.json and filtered locally (not re-fetched), sumatriptan rows, 27 Aug 2026 · read 2026-08-27
    what it says
    “IMIGRAN TABLET 50 mg SIN08419P · SUMATRAN TABLET 50MG SIN13667P · SUMASON TABLETS 50MG SIN17179P — ATC N02CC01, all 50 mg; all 3 sumatriptan rows read Forensicclassification "Prescription Only"”
  2. HealthHub (Pharmaceutical Society of Singapore / MOH) — Sumatriptan: what is this medication for · read 2026-08-27
    what it says
    “Sumatriptan is a selective serotonin receptor agonist … It is often used to treat a migraine attack after it begins. It will not prevent a migraine.”
  3. HealthHub — Sumatriptan: how should I take or use this medication · read 2026-08-27
    what it says
    “It should work within 30 minutes … you may repeat a dose … 2 hours after the first dose. Do not take more than 4 tablets (200 mg) per day”
  4. HealthHub — Sumatriptan: how often it can be used, and food · read 2026-08-27
    what it says
    “Do not use Sumatriptan too frequently (limit to 9-10 days per month …) as it can cause medication overuse headache … You may take this medication with or without food”
  5. HealthHub — Sumatriptan: what precautions should I take · read 2026-08-27
    what it says
    “You have history of heart condition or stroke, uncontrolled blood pressure, seizure (fits), liver or kidney impairment. You are allergic to antibiotic that contains sulfonamide. You are taking … (SSRI) … (SNRI) … (MAOI)”
  6. HealthHub — Sumatriptan: common side effects · read 2026-08-27
    what it says
    “Feeling sleepy, dizziness, tiredness … Do not drink alcohol when taking this medication. Pain or tightness in your throat or jaw … Flushing (feeling hot), tingling sensation. Sore throat”
  7. HealthHub — Sumatriptan: rare but serious side effects · read 2026-08-27
    what it says
    “Signs and symptoms of serotonin syndrome such as; Feeling agitated and restless … Heavy sweating, shivering; Fast heart rate, irregular heartbeat; Rigid or twitching muscles”
  8. HealthHub — Sumatriptan: what food or medication should I avoid · read 2026-08-27
    what it says
    “Avoid taking different triptans or triptan combination products (eg zolmitriptan, naratriptan, etc) or medications containing ergotamine (eg Caffox, Cafergot) or dihydroergotamine within 24 hours after taking sumatriptan.”
  9. NHS medicines A–Z — Sumatriptan, hub page (brand names) · read 2026-08-27
    what it says
    “Sumatriptan: medicine for migraines and cluster headaches … Brand names: Imigran, Migraitan, Boots Migraine Relief”
  10. IMITREX (sumatriptan succinate) tablets — US prescribing information (GlaxoSmithKline, effective 2025-12-09) via openFDA drug/label.json, section 2 Dosage and Administration · read 2026-08-27
    what it says
    “Maximum dose in a 24-hour period: 200 mg … The maximum daily dose is 200 mg in a 24-hour period … the maximum single dose should not exceed 50 mg in patients with mild to moderate hepatic impairment.”
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Updated 2026-08-29. Every line above traces to a numbered source. Kozen-X is not a medical device and does not give medical advice. It lists what published sources have written down — nothing more. A pair not listed is unrecorded, not cleared. Before you start, stop or re-time anything, talk to your doctor or pharmacist.