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Rizatriptan

Rizatriptan

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  • ✔️ Targets migraine pain at its neurological source
  • ✔️ Relieves migraine headache within 30 minutes
  • ✔️ Reduces nausea and light sensitivity during attacks
  • ✔️ Suitable for migraines with or without aura
  • ✔️ Available as tablet or orodispersible wafer form

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What Are Rizatriptan Tablets and How Do They Help Migraines?

 

If you've ever been floored by a migraine — the throbbing head pain, the nausea, the desperate need to lie in a dark room — you'll know how disabling it can be. Rizatriptan tablets are a prescription medicine specifically designed to treat acute migraine attacks in adults, with or without aura. They belong to a class of medicines called triptans, which work directly on the mechanisms that cause migraine pain rather than simply masking it. Available from Cured Pharmacy following a short online consultation, rizatriptan offers a targeted approach to getting your day back on track. If you're also managing other health concerns, you might find our pain relief collection useful for complementary options.

Migraine affects around one in seven people in the UK, according to the NHS, making it one of the most common neurological conditions. It's not just a bad headache — it's a complex neurological event that can last anywhere from a few hours to several days. Rizatriptan is indicated specifically for the headache phase of a migraine and is not intended for prevention or for tension-type headaches.

 

How Does Rizatriptan Work to Relieve a Migraine?

 

Rizatriptan works by targeting specific serotonin receptors in the brain. Here's a simplified breakdown of the mechanism:

  • It binds selectively to 5-HT1B and 5-HT1D serotonin receptors.
  • This causes constriction of dilated cranial blood vessels — a key feature of migraine pain.
  • It also inhibits the release of pro-inflammatory neuropeptides such as CGRP (calcitonin gene-related peptide).
  • The combined effect reduces the pain signal being transmitted along the trigeminal nerve pathway.

In plain terms: during a migraine, blood vessels around the brain widen and certain chemicals are released that trigger pain. Rizatriptan reverses both of these processes. It doesn't prevent migraines from starting, but it can stop one in its tracks once it has begun.

 

Who Is Rizatriptan Suitable For?

 

Rizatriptan is suitable for adults aged 18 and over who experience migraine attacks — with or without aura. It is not suitable for everyone, so a clinical assessment is always required before it is dispensed. Generally, it may be appropriate if you:

  • Have a confirmed diagnosis of migraine from a GP or neurologist.
  • Experience moderate to severe migraine headaches that don't respond well to standard painkillers.
  • Are not currently taking MAO inhibitors or other triptans.
  • Do not have a history of cardiovascular disease, stroke, or uncontrolled high blood pressure.

It is not licensed for use in children or adolescents under 18. If you're unsure whether rizatriptan is right for you, speak to your GP or one of our pharmacists before ordering.

 

How Does Rizatriptan Compare to Sumatriptan?

 

Feature Rizatriptan Sumatriptan
Usual adult dose 10mg 50mg or 100mg
Onset of action ~30 minutes ~30–60 minutes
Available forms Tablets, wafers (orodispersible) Tablets, nasal spray, injection
Max dose in 24 hours 20mg 300mg (tablets)

 

How Should You Store Rizatriptan and Is It Right for Long-Term Use?

 

Store rizatriptan below 25°C in a dry place, away from direct sunlight and out of reach of children. The tablets should be kept in their original packaging until use. Do not use them after the expiry date printed on the pack.

One important consideration with any triptan — including rizatriptan for migraines — is the risk of medication overuse headache (MOH). If you find yourself using rizatriptan on ten or more days per month, speak to your GP. Overuse can paradoxically worsen headache frequency over time. This is a well-recognised issue highlighted by the NHS and is something your prescriber will want to monitor.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Rizatriptan specifications
Treatment category Migraine treatment
Mechanism of action Selective 5-HT1B/1D receptor agonist (triptan)
Effective for Acute migraine attacks with or without aura
Suitable for Adults aged 18 and over
Active ingredient Rizatriptan benzoate
Pack sizes 3 tablets, 6 tablets
Strengths 5mg, 10mg
UK classification Prescription Only Medicine (POM)
Drug class Triptan / Serotonin receptor agonist
Preparation Tablet / Orodispersible wafer
Route of administration Oral

Specifications of Rizatriptan

 

What Is Rizatriptan and What Is It Used For?

 

Rizatriptan is a prescription-only triptan medicine used to treat acute migraine headaches in adults. It is taken at the onset of a migraine attack — either with or without aura — and works to relieve the headache pain, as well as associated symptoms such as nausea and sensitivity to light and sound. It is not used to prevent migraines from occurring and should not be taken as a daily medicine. The NHS confirms that triptans like rizatriptan are one of the most effective treatments available for acute migraine.

 

What Do You Need to Know Before Using Rizatriptan?

 

Before taking rizatriptan, it's essential to tell your prescriber about your full medical history. There are several situations where this medicine should not be used:

  • You have ischaemic heart disease, angina, or have had a heart attack or stroke.
  • You have uncontrolled high blood pressure (hypertension).
  • You have severe liver or kidney impairment.
  • You have taken an MAO inhibitor (such as phenelzine or moclobemide) within the past 14 days.
  • You are allergic to rizatriptan or any of its ingredients.
  • You have a condition called hemiplegic or basilar migraine.

The following medicines may interact with rizatriptan — always inform your prescriber or pharmacist if you are taking any of these:

  • Other triptans (e.g. sumatriptan, zolmitriptan) — do not combine.
  • Ergotamine or ergot derivatives — do not take within 24 hours of rizatriptan.
  • SSRIs or SNRIs (e.g. fluoxetine, venlafaxine) — risk of serotonin syndrome.
  • Propranolol — increases rizatriptan blood levels; a lower 5mg dose may be required.
  • St John's Wort — may increase the risk of serotonin-related side effects.

 

How Should You Use Rizatriptan?

 

Always use rizatriptan exactly as your prescriber has told you. The following steps outline the standard approach:

  1. Take one tablet as soon as your migraine headache begins — not during the aura phase.
  2. Swallow the tablet whole with water. If using the orodispersible wafer, place it on your tongue and allow it to dissolve without water.
  3. If your migraine returns after initial relief, you may take a second dose at least two hours after the first.
  4. Do not take more than two doses (20mg) in any 24-hour period.
  5. If the first dose does not work at all, do not take a second dose for the same attack — speak to your GP.
Indication Age Group Dose Frequency
Acute migraine Adults (18+) 10mg (5mg if taking propranolol) Once; repeat after 2 hours if needed. Max 20mg/24hrs
Acute migraine Under 18 Not recommended Not applicable

If you're looking for additional support between migraine attacks, our sickness and nausea collection includes options that may help manage nausea symptoms.

 

What Are the Possible Side Effects of Rizatriptan?

 

Like all medicines, rizatriptan can cause side effects, although not everyone experiences them. Most side effects are mild and resolve on their own.

Common side effects (may affect up to 1 in 10 people):

  • Dizziness or lightheadedness
  • Drowsiness or fatigue
  • Sensation of tingling, warmth, or flushing
  • Feeling of heaviness or pressure in the chest, neck, or limbs
  • Nausea
  • Dry mouth

Less common side effects (may affect up to 1 in 100 people):

  • Palpitations or increased heart rate
  • Tremor
  • Blurred vision
  • Indigestion or abdominal discomfort
  • Sweating

Seek immediate medical attention if you experience chest pain, tightness, or pressure that is severe or does not resolve — this could indicate a serious cardiovascular reaction. Serotonin syndrome (agitation, confusion, rapid heart rate, high temperature) is rare but requires urgent medical assessment.

 

How Should You Store Rizatriptan?

 

  • Store below 25°C in a dry place.
  • Keep away from direct sunlight and moisture.
  • Store in the original packaging until use.
  • Keep out of the sight and reach of children.
  • Do not use after the expiry date printed on the pack.
  • Do not dispose of medicines via wastewater or household waste — return unused tablets to your pharmacy.

For general wellbeing support alongside your migraine management, you might also explore our vitamins and supplements collection, which includes options such as magnesium — a nutrient some migraine sufferers find beneficial when used as part of a broader lifestyle approach.

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Frequently Asked Questions

Where can I buy rizatriptan tablets online in the UK?

You can order rizatriptan tablets online through Cured Pharmacy, a GPhC-registered online pharmacy. Because rizatriptan is a prescription-only medicine (POM), you'll need to complete a short online consultation before your order is dispensed. This ensures the medicine is clinically appropriate for you and that it's supplied safely and legally.

How does rizatriptan work in the body?

Rizatriptan works by binding to serotonin receptors (specifically 5-HT1B and 5-HT1D) in the brain, which causes the dilated blood vessels around the brain to narrow. It also blocks the release of pain-triggering chemicals along the trigeminal nerve pathway. Together, these actions reduce the headache pain, nausea, and light sensitivity that come with a migraine attack.

How quickly does rizatriptan start to work?

Rizatriptan typically begins to work within 30 minutes of taking a dose. Most people notice meaningful headache relief within one to two hours. It tends to act faster than some other triptans, which is one reason it's a commonly prescribed option for acute migraine.

What is the correct dose of rizatriptan for adults?

The standard adult dose is 10mg taken at the onset of a migraine headache. If the migraine returns after initial relief, a second 10mg dose may be taken at least two hours after the first. The maximum dose in any 24-hour period is 20mg — do not exceed this.

Can I take rizatriptan if I am also taking propranolol?

If you are taking propranolol (a beta-blocker often used for migraine prevention), you should use the lower 5mg dose of rizatriptan rather than the standard 10mg. Propranolol increases the blood levels of rizatriptan, so the lower dose is recommended to reduce the risk of side effects. Always tell your prescriber about all medicines you are taking.

What are the most common side effects of rizatriptan?

The most commonly reported side effects include dizziness, drowsiness, a tingling or warm sensation, and a feeling of heaviness or pressure in the chest or throat. These effects are usually mild and short-lived. If you experience severe chest pain or tightness, seek medical attention immediately as this could indicate a serious reaction.

How do I manage side effects of rizatriptan?

Most side effects of rizatriptan are mild and resolve without treatment within a short time. If you feel drowsy after taking it, avoid driving or operating machinery until you feel alert again. For nausea, resting in a quiet, dark room can help — you might also find options in our sickness and nausea collection useful for managing this symptom. If side effects are persistent or severe, contact your GP or pharmacist.

Who is eligible to use rizatriptan?

Rizatriptan is suitable for adults aged 18 and over who have a confirmed diagnosis of migraine. It is not suitable for people with cardiovascular disease, uncontrolled hypertension, severe liver or kidney problems, or those taking MAO inhibitors. A clinical consultation is required before it can be prescribed, which our online pharmacy facilitates safely and conveniently.

What happens if rizatriptan doesn't work for my migraine?

If the first dose of rizatriptan does not relieve your migraine at all, do not take a second dose for the same attack — it is unlikely to help and could increase your risk of side effects. Instead, speak to your GP, who may suggest a different triptan, a higher dose, or a combination approach. Not all triptans work equally well for every person, and it sometimes takes a little trial to find the right one.

Can I take rizatriptan during pregnancy or breastfeeding?

Rizatriptan is not recommended during pregnancy unless your doctor considers it clearly necessary, as there is limited safety data available. It should also be avoided during breastfeeding, or breastfeeding should be paused for 24 hours after taking a dose. Always speak to your GP or midwife before taking any migraine medicine if you are pregnant or breastfeeding.

What are the alternatives to rizatriptan for migraines?

Other triptans available in the UK include sumatriptan, zolmitriptan, naratriptan, almotriptan, and eletriptan — each with slightly different onset times and durations of action. Non-triptan options include NSAIDs such as ibuprofen or aspirin, and anti-sickness medicines. You can browse our pain relief collection for over-the-counter options that may complement your migraine management plan.

How often can I take rizatriptan each month?

You should not use rizatriptan — or any triptan — on more than 10 days per month. Using it more frequently than this can lead to medication overuse headache (MOH), a condition where the medicine itself starts to cause more frequent headaches. If you find you're reaching for it very regularly, speak to your GP about preventative migraine treatments.

Is rizatriptan the same as Maxalt?

Yes — Maxalt is a branded version of rizatriptan, manufactured by MSD. Both contain the same active ingredient (rizatriptan benzoate) and work in exactly the same way. Generic rizatriptan tablets are bioequivalent to Maxalt and are regulated to the same standards by the MHRA.

Can rizatriptan be used for cluster headaches?

Rizatriptan is not licensed for the treatment of cluster headaches in the UK. While some triptans (such as sumatriptan injection or nasal spray) are used for cluster headaches, rizatriptan tablets are specifically indicated for migraine only. If you think you may have cluster headaches, speak to your GP for an accurate diagnosis and appropriate treatment.

What are the latest studies on rizatriptan?

Rizatriptan has been extensively studied since its introduction and remains one of the most well-evidenced triptans for acute migraine. Clinical research continues to support its efficacy and tolerability profile, and it is included in NICE and NHS guidance as a recommended treatment option for migraine. Ongoing research into CGRP-targeting medicines may offer additional future options alongside established triptans like rizatriptan.

How Should You Use Rizatriptan?

Rizatriptan should be taken as soon as your migraine headache begins. It is not intended for use during the aura phase that sometimes precedes a migraine, and it will not prevent a migraine from starting. Always follow the instructions given by your prescriber or pharmacist.

Do not crush or chew standard tablets. If you feel nauseous, taking the orodispersible form may be more comfortable than swallowing a tablet.

What Is the Correct Dose of Rizatriptan?

The dose of rizatriptan depends on your age and any other medicines you are taking. The table below summarises the standard dosing guidance. Always follow your prescriber's specific instructions, as individual circumstances may vary.

When Is the Best Time to Use Rizatriptan?

The best time to take rizatriptan is at the very start of your migraine headache — as soon as the pain begins. Taking it early in the attack, before the headache becomes severe, tends to produce the best results. Do not take it during the aura phase if you experience one, as this has not been shown to be effective and is not recommended.

If you have taken rizatriptan and your migraine has resolved but then returns within 24 hours, you may take a second dose — provided at least two hours have passed since the first. This is known as a recurrent migraine attack and is a recognised pattern that rizatriptan can help manage.

How Long Can You Use Rizatriptan For?

Rizatriptan is intended for use on an as-needed basis during individual migraine attacks — it is not a daily or preventative medicine. You should not use it on more than 10 days per month, as more frequent use can lead to medication overuse headache (MOH), a condition where the medicine itself begins to cause more frequent headaches over time.

If you find that you are needing to use rizatriptan very regularly, speak to your GP. There are preventative migraine treatments available — such as topiramate, propranolol, or amitriptyline — that may reduce how often your migraines occur and therefore reduce your reliance on acute treatments.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of Rizatriptan?

Most people who take rizatriptan tolerate it well, but like all medicines, it can cause side effects. Common side effects affect up to 1 in 10 people and are usually mild and short-lived. They often resolve on their own within a short time after taking the tablet.

  • Dizziness or lightheadedness
  • Drowsiness or fatigue
  • Sensation of tingling, warmth, or flushing
  • Feeling of heaviness, tightness, or pressure in the chest, neck, throat, or limbs
  • Nausea
  • Dry mouth
  • Headache (distinct from the migraine being treated)

What Are the Less Common Side Effects of Rizatriptan?

Less common side effects affect up to 1 in 100 people. These are not experienced by most users but are worth being aware of, particularly if you are taking rizatriptan for the first time.

  • Palpitations or a faster-than-normal heart rate
  • Tremor or shakiness
  • Blurred vision
  • Indigestion or abdominal discomfort
  • Sweating
  • Thirst
  • Feeling of agitation or anxiety
  • Muscle weakness

What Are the Serious Side Effects of Rizatriptan?

Serious side effects are rare but require immediate medical attention. If you experience any of the following after taking rizatriptan, stop taking it and seek urgent medical help:

  • Severe or persistent chest pain, tightness, or pressure — this could indicate a cardiovascular reaction.
  • Sudden severe headache, weakness on one side of the body, or difficulty speaking — these could be signs of a stroke.
  • Signs of serotonin syndrome: agitation, confusion, rapid heart rate, high temperature, muscle twitching, or diarrhoea — particularly if you are also taking SSRIs or SNRIs.
  • Allergic reaction: swelling of the face, lips, tongue, or throat; difficulty breathing; or a widespread skin rash.

What Should You Do If You Experience Side Effects?

If you experience mild side effects such as dizziness or drowsiness, rest until they pass and avoid driving or operating machinery. Most effects resolve within an hour or two. If side effects are troublesome, persistent, or unexpected, contact your pharmacist or GP for advice. You can also report side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

It's worth noting that the sensation of pressure or tightness in the chest is a known and usually harmless effect of triptans — however, if it is severe or accompanied by other symptoms, always seek medical attention to rule out a cardiac cause.

Can Rizatriptan Interact With Other Medicines?

Yes — rizatriptan has several clinically important interactions. Do not take it alongside other triptans or ergotamine-containing medicines. If you are taking SSRIs, SNRIs, or St John's Wort, there is a risk of serotonin syndrome. Propranolol increases rizatriptan blood levels, so a lower 5mg dose is required if you take both. Always give your prescriber and pharmacist a full list of your current medicines, including herbal remedies and supplements.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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