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Relpax is a medicine specifically used to relieve migraine attacks. It contains the active ingredient eletriptan, which has a narrowing effect on blood vessels in the brain. More information

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£74.49 (incl. VAT)
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Prescription required
Yes (consultation included in the price)

Read the package leaflet for more information about risks and side effects, or ask your doctor or pharmacist for advice.

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What is Relpax?

Relpax is a medicine specifically used to relieve migraine attacks. It contains the active ingredient eletriptan, which has a narrowing effect on blood vessels in the brain. This helps reduce or eliminate migraine symptoms. Relpax is a prescription-only medicine.

What is Relpax used for?

This medicine can be used to relieve migraine after it has started. Migraine is a type of headache that involves severe pain, usually to one side of the head. In addition to severe headache, migraines are often also accompanied by nausea and sensitivity to light and sound. The onset of a migraine may be preceded by an aura: visual disturbances such as dark patches, flashing lights, stars or zigzag patterns. Migraine episodes can last a few hours up to several days.

How to use Relpax

Relpax tablets should be taken as early as possible after the migraine headache has started. The tablets should be swallowed whole with some water and can be taken with or without food. Relpax takes about 30 minutes to take effect. If the first dose does relieve your migraine headache, but it returns within 24 hours, a second dose can be effective. If you need a second dose because your migraine has returned, you should not take it within two hours of your first dose. Note: this medicine is not effective in preventing migraines.


Relpax is available as tablets of 20 mg and 40 mg. The doctor will recommend the right dose for you depending on your symptoms. Unless otherwise advised by the doctor, the usual dose is:

  • Adults aged 18 to 65 years: one 20-mg or 40-mg tablet at a time. Repeat if necessary. Do not take more than 80 mg in any 24-hour period.
Always follow the prescription exactly - never take more than the doctor recommends. Relpax tablets are not recommended in people under 18 and over 65 years of age. Read the package leaflet before use.

Side effects

Relpax may cause side effects, although not everyone gets them. Side effects that are known to be associated with this medicine include:

  • Dizziness;
  • Sleepiness, tiredness;
  • Tingling or itchy sensation, numbness;
  • Pain, muscle ache;
  • Sensation of tightness or pressure in any part of the body, including the chest and throat. If feelings of tightness or pressure continue or are particularly severe (especially chest pain), you should tell your doctor immediately.
For more information on possible side effects, see the package leaflet.

When not to use Relpax

Relpax is not suitable for everyone and should not be used if:

  • You are hypersensitive to eletriptan;
  • You have or have a history of heart problems, brain haemorrhage or cardiovascular disease;
  • You have kidney or liver problems;
  • You have high blood pressure;
  • You are taking certain antidepressants or other migraine medicines.
Consult a doctor on the use of Relpax if you have a health condition that is not listed above, are taking medication, smoke cigarettes or are older than 40 years of age.

Pregnancy/driving ability/alcohol

Relpax should not be used by pregnant or breastfeeding women without consulting a doctor first.

Relpax may affect your ability to react. Avoid driving, using machines or doing anything else that could be dangerous if you are less alert or feel dizzy or sleepy.

Alcohol can make side effects worse and set off a new migraine episode. Avoid drinking alcohol while taking this medicine.

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