Nervous System Home > Sumatriptan

What If I Overdose on This Medicine?

People who take too much sumatriptan may have overdose symptoms that could include:
  • Seizures
  • Shakiness
  • Paralysis
  • Swelling in the arms or legs
  • Wide or dilated pupils
  • Increased saliva and watery eyes.
If you happen to overdose on this medication, seek immediate medical attention.
(Click Imitrex Overdose for more information.)

How Should Sumatriptan Be Stored?

Sumatriptan should be stored at room temperature, away from moisture or heat. The tablets should be kept in an airtight container. Keep the tablets in their original blister package until you need to use them.
Keep this and all medications out of the reach of children.

What Should I Do If I Miss a Dose?

Sumatriptan is not intended to be taken on a regular basis. It should be taken only during a migraine headache.

Available Strengths

Sumatriptan tablets (Imitrex) are available in three strengths:
  • Sumatriptan 25 mg
  • Sumatriptan 50 mg
  • Sumatriptan 100 mg.
The nasal spray (Imitrex) is available in two strengths:
  • Sumatriptan nasal spray 5 mg
  • Sumatriptan nasal spray 20 mg.
The standard injection form (Imitrex) is available in the following strengths:
  • Sumatriptan 4 mg
  • Sumatriptan 6 mg.
Imitrex injection is used with an autoinjector (a device that injects the dose automatically).
A needle-free injection system (Sumavel) is available in only one strength -- sumatriptan 6 mg. An autoinjector form (Alsuma) is available in a 6-mg strength as well.
A patch form is available in one strength -- as Zecuity iontophoretic transdermal system, which contains 86 mg of sumatriptan total but only delivers 6.5 mg of the medicine over four hours.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
List of references (click here):
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