Do not use this medicine for a headache that is different from your usual migraines. Talk to your doctor about what to do for regular headaches.
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 are not much better in 1 or 2 hours after using this medicine, do not use any more of this medicine for the same migraine. A migraine that is not relieved by the first dose of sumatriptan probably will not be relieved by a second dose, either. Ask your doctor ahead of time about other medicine to be taken if sumatriptan does not work. After taking the other medicine, check with your doctor as soon as possible. Headaches that are not relieved by sumatriptan are sometimes caused by conditions that need other treatment. However, even if sumatriptan does not relieve one migraine, it may still relieve the next one.
If you feel much better after a dose of sumatriptan, but your headache comes back or gets worse after a while, you may use more sumatriptan. 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.
Your doctor may direct you to take another medicine to help prevent headaches. It is important that you follow your doctor's directions, even if your headaches continue to occur. Headache-preventing medicines may take several weeks to start working. Even after they do start working, your headaches may not go away completely. However, your headaches should occur less often, and they should be less severe and easier to relieve. This can reduce the amount of sumatriptan or pain relievers that you need. If you do not notice any improvement after several weeks of headache-preventing treatment, check with your doctor.
Using this medicine for 10 or more days per month may make your headache worse (medication overuse headache). If your headache becomes worse, call your doctor. It is also important that you write down when you have migraine headaches and when you take this medicine.
This medicine comes with a patient information leaflet. Read and follow the instructions carefully. Ask your doctor if you have any questions.
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 nasal dosage form (nasal solution):
- For migraine headaches:
- Adults—5 milligrams (mg) (1 spray into one nostril) or 10 mg (2 sprays in one nostril or 1 spray in each nostril) or 20 mg (1 spray into one nostril). If pain is not relieved, another spray (5 mg, 10 mg, or 20 mg) should not be used for the same migraine attack. Another spray (5 mg, 10 mg, or 20 mg) may be used for a migraine that occurs at a later time as long as it has been at least 2 hours since the last spray. Do not use more than 40 mg in a 24-hour period (one day).
- Children—Use and dose must be determined by your doctor.
- For migraine headaches:
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.