{"ok":true,"entry":{"slug":"sumatriptan","kind":"medication","name":"sumatriptan","aliases":["Imigran"],"brands_sg":["Imigran","Sumatran","Sumason"],"class":"triptan","tags":["pain-fever"],"use_for":"healthhub: to stop a migraine attack after it begins","use_after":"healthhub: at the start of an attack · works in ~30 min","use_duration":null,"take_with":"healthhub: with or without food","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"],"dose_note":"healthhub's singapore leaflet is the ceiling here: \"Do not take more than 4 tablets (200 mg) per day or as per your doctor's instructions\", with a repeat dose no sooner than 2 hours after the first, and a separate limit of \"9-10 days per month\" to avoid medication-overuse headache. the us imitrex label agrees on the daily figure — \"The maximum daily dose is 200 mg in a 24-hour period\" — and adds that in mild to moderate liver impairment \"the maximum single dose should not exceed 50 mg\". every sg-registered sumatriptan product is a 50 mg tablet. in singapore the prescriber sets the dose.","dosage":null,"ul_status":null,"sg_class":"prescription-only","cautions":["a heart condition, stroke or uncontrolled blood pressure (healthhub)","seizures, or liver or kidney impairment (healthhub)","an allergy to sulfonamide-containing antibiotics (healthhub)","pregnant, planning pregnancy or breastfeeding (healthhub)"],"clashes":[{"src":["hh_suma_avoid"],"note":"healthhub: not within 24 hours after taking sumatriptan","with":"other triptans or triptan combination products"},{"src":["hh_suma_avoid"],"note":"healthhub: not within 24 hours after taking sumatriptan","with":"ergotamine or dihydroergotamine"},{"src":["hh_suma_prec","hh_suma_serious"],"note":"healthhub lists these under precautions and flags serotonin syndrome signs","with":"ssris, snris and maois"},{"src":["hh_suma_side"],"food":true,"note":"healthhub pairs alcohol with the drowsiness and dizziness this medicine can cause","with":"alcohol"}],"sources":[{"id":"hsa_register","url":"https://data.gov.sg/datasets/d_767279312753558cbf19d48344577084/view","label":"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","quote":"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\"","accessed":"2026-08-27"},{"id":"hh_suma_uses","url":"https://www.healthhub.sg/medication-devices-and-treatment/medications/sumatriptan","label":"HealthHub (Pharmaceutical Society of Singapore / MOH) — Sumatriptan: what is this medication for","quote":"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.","accessed":"2026-08-27"},{"id":"hh_suma_howto","url":"https://www.healthhub.sg/medication-devices-and-treatment/medications/sumatriptan","label":"HealthHub — Sumatriptan: how should I take or use this medication","quote":"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","accessed":"2026-08-27"},{"id":"hh_suma_limit","url":"https://www.healthhub.sg/medication-devices-and-treatment/medications/sumatriptan","label":"HealthHub — Sumatriptan: how often it can be used, and food","quote":"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","accessed":"2026-08-27"},{"id":"hh_suma_prec","url":"https://www.healthhub.sg/medication-devices-and-treatment/medications/sumatriptan","label":"HealthHub — Sumatriptan: what precautions should I take","quote":"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)","accessed":"2026-08-27"},{"id":"hh_suma_side","url":"https://www.healthhub.sg/medication-devices-and-treatment/medications/sumatriptan","label":"HealthHub — Sumatriptan: common side effects","quote":"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","accessed":"2026-08-27"},{"id":"hh_suma_serious","url":"https://www.healthhub.sg/medication-devices-and-treatment/medications/sumatriptan","label":"HealthHub — Sumatriptan: rare but serious side effects","quote":"Signs and symptoms of serotonin syndrome such as; Feeling agitated and restless … Heavy sweating, shivering; Fast heart rate, irregular heartbeat; Rigid or twitching muscles","accessed":"2026-08-27"},{"id":"hh_suma_avoid","url":"https://www.healthhub.sg/medication-devices-and-treatment/medications/sumatriptan","label":"HealthHub — Sumatriptan: what food or medication should I avoid","quote":"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.","accessed":"2026-08-27"},{"id":"nhs_suma_hub","url":"https://www.nhs.uk/medicines/sumatriptan/","label":"NHS medicines A–Z — Sumatriptan, hub page (brand names)","quote":"Sumatriptan: medicine for migraines and cluster headaches … Brand names: Imigran, Migraitan, Boots Migraine Relief","accessed":"2026-08-27"},{"id":"fda_imitrex_dose","url":"https://api.fda.gov/drug/label.json?search=openfda.brand_name:%22IMITREX%22&limit=1","label":"IMITREX (sumatriptan succinate) tablets — US prescribing information (GlaxoSmithKline, effective 2025-12-09) via openFDA drug/label.json, section 2 Dosage and Administration","quote":"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.","accessed":"2026-08-27"}],"brand_certs":null,"updated_at":"2026-08-29T16:16:31.341231+08:00"},"disclaimer":"kozen-x is not a medical device and does not give medical advice. it lists what published sources have written down. absence of a record is not the same as safe."}