My Cart

0 Item(s): $0.00

You have no items in your shopping cart.



What is sumatriptan?

Sumatriptan oral tablet is a prescription drug that's available as the brand-name drug Imitrex. It's also available as a generic drug. Generic drugs usually cost less. In some cases, they may not be available in every strength or form as the brand-name version.

Sumatriptan also comes in a nasal spray, an injectable solution, or a nasal powder.

How it works

Sumatriptan belongs to a class of drugs called serotonin-1 receptor agonists. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions.

A migraine causes the blood vessels in the brain to expand. It also causes a release of chemicals in the brain that can cause inflammation (swelling and irritation). Sumatriptan works by helping to bring your blood vessels back to their normal size. It also helps prevent your body's release of these chemicals that cause inflammation.

Drug Interactions

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

  • Almotriptan
  • Bromocriptine
  • Dihydroergotamine
  • Eletriptan
  • Ergoloid Mesylates

Serious side effects

These side effects are serious. If you get them, you should stop taking sumatriptan straight away, and seek medical attention:

  • fast or irregular heartbeat
  • fainting
  • severe stomach pain
  • bloody diarrhoea
  • seizures
  • signs of a heart attack (shortness of breath, sweating, and pain along the left arm, chest and jaw)
  • signs of a stroke (difficulty seeing and speaking, confusion, and weakness along one side of the body)


Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.


It is very important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to use it.

Check with your doctor if you used this medicine and it did not work. Also, check with your doctor if your migraine headaches are worse or if they are occurring more often since you started using this medicine.