How to Use Sumatriptan
Sumatriptan should be taken at the first sign of a migraine headache — but not during the aura phase (the early warning symptoms such as visual disturbances). Taking it as soon as the headache starts gives the best chance of fully aborting the attack.

Tablet dosing:

• Take one 50mg tablet at the first sign of migraine pain
• Swallow whole with a glass of water (do not crush or chew unless using a dispersible formulation)
• If your migraine returns after initial improvement, you can take a second tablet at least 2 hours later
• The maximum dose in 24 hours is 300mg (e.g. three 100mg tablets, or six 50mg tablets)
• Do not take a second dose if the first dose did not work — if there is no response, sumatriptan is unlikely to work for that particular attack

Important usage tips:

• Take at the first sign of pain — sumatriptan is most effective when taken early, before the migraine becomes fully established
• Do not take during aura — wait until the headache itself begins (recent evidence suggests this remains the safer approach for most patients)
• Rest in a quiet, dark room after taking sumatriptan to support recovery
• Stay hydrated and avoid food and drinks that may worsen the migraine
• Track your migraines in a headache diary to help identify triggers and treatment response

How often can I use sumatriptan?

Sumatriptan should be used only when needed for acute attacks. To avoid medication overuse headache (MOH) — a condition where frequent acute treatments paradoxically worsen headaches — limit triptan use to:

• No more than 10 days per month in total
• No more than 2 to 3 attacks per week on average

If you are using sumatriptan more frequently than this, speak to a clinician about migraine prevention treatment (such as propranolol, topiramate, amitriptyline, or newer CGRP-targeted therapies).

Important Precautions
Cardiovascular safety: Sumatriptan causes mild vasoconstriction, which is the basis of its action against migraine but also the reason it is contraindicated in people with cardiovascular disease. Before prescribing sumatriptan to anyone over 40 or with cardiovascular risk factors, clinicians will typically assess:

• Blood pressure
• Personal and family cardiovascular history
• Cholesterol and diabetes status
• Smoking history

If you experience chest pain, tightness, or breathlessness after taking sumatriptan — particularly if it is severe or persistent — seek urgent medical attention.

Drug interactions: Important interactions include:

• Monoamine oxidase inhibitors (MAOIs) — contraindicated; do not use within 2 weeks of stopping an MAOI
• Other triptans or ergotamine — do not combine within 24 hours
• Selective serotonin reuptake inhibitors (SSRIs) and SNRIs — risk of serotonin syndrome; use with caution
• Lithium — risk of serotonin syndrome
• St John's Wort — increases serotonin syndrome risk; avoid concurrent use

Always inform your clinician about all medications and supplements you take.

Pregnancy and breastfeeding: Sumatriptan is not generally recommended in pregnancy or breastfeeding unless the potential benefit outweighs the risk. Although limited human data have not shown clear evidence of harm, decisions should be made in discussion with a clinician. If used while breastfeeding, manufacturers advise discarding breast milk for 12 hours after a dose.

Driving and machinery: Sumatriptan can cause drowsiness or dizziness. Do not drive or operate machinery until you know how it affects you.

Alcohol: Alcohol can worsen migraines and may increase the risk of side effects. It is best avoided during a migraine attack, regardless of whether you have taken sumatriptan.

Medication overuse headache (MOH): Frequent use of any acute migraine treatment — including triptans — can paradoxically lead to more headaches. Limit sumatriptan use to fewer than 10 days per month, and discuss preventive treatment options if your attacks are frequent.