Zolmitriptan

About Zolmitriptan

Zolmitriptan is a triptan: it binds strongly to 5-HT1B and 5-HT1D serotonin receptors. It treats an attack, with or without aura, once it has begun; it is not for preventing migraine, and its safety and effectiveness in cluster headache have not been established. Tablets start at 1.25 or 2.5 mg (the 2.5 mg tablet is scored and can be broken in half), the orally disintegrating tablet must not be broken, and the spray starts at 2.5 mg. In every form a single dose is at most 5 mg, a second dose comes at least 2 hours after the first, and no more than 10 mg is taken in 24 hours; the tablet label adds that the safety of treating more than three attacks in 30 days, on average, has not been established.

Neck, throat or jaw pain, dizziness, tingling, weakness, sleepiness, warm or cold sensations, nausea, heaviness and dry mouth are the most common side effects of the tablets; with the spray they are an unusual taste, tingling, increased skin sensitivity and dizziness. Chest or throat pressure is usually not from the heart, but triptans can rarely cause heart attacks, dangerous rhythms, strokes and spasm of blood vessels elsewhere, so someone with several heart risk factors may need a heart check first. It must not be taken with coronary artery or other significant heart disease, coronary spasm, Wolff-Parkinson-White syndrome, a past stroke or TIA, hemiplegic or basilar migraine, peripheral vascular or ischemic bowel disease, uncontrolled high blood pressure, or within 24 hours of another triptan or an ergot. With SSRI or SNRI antidepressants it can contribute to serotonin syndrome, and using acute migraine medicines on 10 or more days a month can cause medication-overuse headache.

MAO-A inhibitors raise levels of zolmitriptan and its active metabolite, and using one with it is ruled out; cimetidine roughly doubles its half-life and blood levels, so with cimetidine a single dose is at most 2.5 mg and no more than 5 mg is taken in 24 hours. In moderate or severe liver impairment, tablets are used at 1.25 mg (at most 5 mg a day if severe), and the orally disintegrating tablets and the spray are not recommended. Orally disintegrating tablets can contain phenylalanine, which matters in phenylketonuria. Tablets of either kind are not recommended under 18: their safety and effectiveness in children have not been established, and a study of the tablets in teenagers did not show they worked better than placebo. In December 2025 the FDA determined that Zomig tablets and Zomig-ZMT were not withdrawn from sale for reasons of safety or effectiveness.

Taking Zolmitriptan

How to take it

Tablets: swallow one when the migraine starts; if the prescribed dose is 1.25 mg, the scored 2.5 mg tablet is broken in half. Orally disintegrating tablets: keep the tablet in its blister until you are ready, then peel the blister open, put the tablet on your tongue and let it dissolve; no liquid is needed, and do not break it. Spray: blow your nose gently, then use one device in one nostril without priming it, breathing in gently as you press the plunger.

If you miss a dose

It is taken only for a migraine attack, so there is no schedule to miss. If the first dose does not help at all, call the prescriber before taking a second.

Storage

At room temperature, away from light and moisture, out of reach of children. Keep orally disintegrating tablets in the blister until use and discard any taken out but not used; throw each spray device away after its single dose. Use a take-back program rather than flushing.

Interactions to know about

Do not take it with, or within two weeks of, an MAO-A inhibitor, or within 24 hours of another triptan or an ergot such as dihydroergotamine. Cimetidine raises its levels, so the dose limit is lower. SSRI, SNRI and tricyclic antidepressants can contribute to serotonin syndrome. Call the prescriber right away or get emergency help for chest pain, pressure or tightness, shortness of breath, sudden or severe stomach pain, swelling of the face, lips, tongue or throat, or weakness or numbness in an arm or leg.

This summarizes the official prescribing information. Your prescriber’s and pharmacist’s instructions, and the leaflet that comes with your medicine, take priority.

Why the cash price for Zolmitriptan differs from pharmacy to pharmacy

Generic tablets come from many makers and orally disintegrating tablets from fewer. Some are packed in small blister packs (six 2.5 mg or three 5 mg tablets), and because the medicine is taken only for attacks, a fill can be small, so the dispensing fee makes up much of a cash quote.

The nasal spray has few makers (the Zomig brand and a small number of generics), Zomig comes in boxes of six single-use devices, and a pharmacy may need to order it. A prescription that names Zomig and blocks substitution is filled with the brand.

Ways to pay less for Zolmitriptan without insurance

• Check that the prescription allows generic substitution, especially for the nasal spray, which is still sold as a brand.
• If you treat attacks regularly, ask the prescriber whether a larger quantity per fill would suit you, so one dispensing fee covers more doses.
• For an adult, if the spray or the orally disintegrating tablet is quoted high, ask the prescriber whether plain tablets would suit you; tablets are not recommended under 18.
• Compare more than one pharmacy, and ask whether zolmitriptan tablets are on a flat-price generic list.
• Upload the prescription to Script Unlock so licensed pharmacies can quote their cash price. You pay the pharmacy directly.

Questions to ask your pharmacist about Zolmitriptan

1. 1.Is it safe with my antidepressant, cimetidine or other medicines?
2. 2.When can I take a second dose, and what is my limit in 24 hours?
3. 3.How many days a month can I use it without risking rebound headaches?
4. 4.How do I use the nasal spray device so I do not waste a dose?

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