Sumatriptan (Subcutaneous Route)

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Proper Use

Do not use this medicine for a migraine or cluster headache that is different from your usual headaches. Instead, check with your doctor.

To relieve your migraine as soon as possible, use this medicine as soon as the headache pain begins. Even if you get warning signals of a coming migraine (an aura), you should wait until the headache pain starts before using sumatriptan. Using sumatriptan during the aura probably will not prevent the headache from occurring. However, even if you do not use sumatriptan until your migraine has been present for several hours, the medicine will still work.

Lying down in a quiet, dark room for a while after you use this medicine may help relieve your migraine.

If you feel much better after a dose of sumatriptan, but your headache comes back or gets worse after a while, wait at least 2 hours before using another dose. However, use this medicine only as directed by your doctor. Do not use more of it, and do not use it more often, than directed. Using too much sumatriptan may increase the chance of side effects. Do not use more than two doses in 24 hours.

This medicine is given as a shot under your skin (usually on the abdomen or stomach, thighs, or upper arms). Sumatriptan injection may sometimes be given at home to patients who do not need to be in a hospital or clinic. If you are using this medicine at home, your doctor or nurse will teach you how to prepare and inject the medicine. Be sure that you understand how to use the medicine.

If you use this medicine at home, you will be shown the body areas where this shot can be given. Use a different body area each time you give yourself a shot. Keep track of where you give each shot to make sure you rotate body areas. This will help prevent skin problems.

This medicine is available in 3 forms. You may use a single dose vial, prefilled syringe, or a prefilled autoinjector.

After you have finished injecting the medicine, be sure to follow the precautions in the patient directions about safely discarding the empty cartridge and the needle. Always return the empty cartridge and needle to their container before discarding them. Do not throw away the autoinjector unit, because refills are available.

This medicine comes with a patient information leaflet. Read and follow the instructions carefully. Ask your doctor if you have any questions.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

• For injection dosage form:
  • For migraine or cluster headaches:
    • Adults—One 6-milligrams (mg) injected under the skin. One more 6-mg dose may be injected, if necessary, if the migraine comes back after being relieved. However, the second injection should not be given any sooner than 1 hour after the first one. Do not use more than two 6-mg injections in a 24-hour period (one day). However, some people may be directed to use no more than two 6-mg doses in a 48-hour period (two days).
    • Children—Use and dose must be determined by your doctor.

Storage

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.

Throw away used syringes or autoinjectors in a hard, closed container that the needles cannot poke through. Keep this container away from children and pets.

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