Imitrex Injection Stat Dose Prefilled Syringe Refill (Sumatriptan)

Imitrex Injection Stat Dose Prefilled Syringe Refill

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FormulationFormulation: Prefilled Pen
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(Generic Alternative)

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The Imitrex Injection Stat Dose Prefilled Syringe Refill is a medication used for the treatment of migraines including sensitivity to light or sound, nausea, and vomiting.

It does not prevent future migraines/headaches or reduce how often you may get a headache. 

Sumatriptan, the active ingredient in Imitrex, belongs to a class of drugs called antimigraine agents. It works by narrowing the blood vessels in the brain and reducing the release of certain substances that can trigger migraines.

The Imitrex Injection Stat Dose Prefilled Syringe Refill is intended for the acute treatment of migraines and should be used as directed by a healthcare provider. 


  • Learn all injection and disposal instructions from the product package or consult your healthcare provider if unclear. This includes proper injection technique and disposal of used needles/syringes/devices.
  • Inject just under the skin as soon as migraine symptoms appear.
  • Clean the injection site with alcohol before injecting. (For needle-free devices, ensure clean and dry skin.)
  • If symptoms don't improve, consult your healthcare provider before using more Imitrex.
  • For partial relief or returning headache, use a second injection after one hour (up to 12mg in 24 hours).
  • Do not reuse syringes or needle-free devices. Follow auto-injector instructions for reuse.
  • If symptoms persist 2 hours after injection, consider switching to oral sumatriptan (max 100mg in 24 hours).6


  • Don't use Imitrex if you have never had it and have heart disease risk factors. Your healthcare provider may monitor you for the first dose.
  • Don't take more than the prescribed dose.
  • Don't use Imitrex more often than 10 days per month to avoid medication overuse headaches.
  • Never inject into a vein, muscle, or through clothing.

Common side effects may include:

  • Injection site reactions, such as pain, redness, or swelling at the injection site.
  • Tingling or numbness sensations.
  • Warm or cold sensations.
  • Dizziness or lightheadedness.
  • Nausea or vomiting.
  • Fatigue or drowsiness.

Serious side effects may include:

  • Allergic reactions, such as hives, itching, rash, swelling, or difficulty breathing.
  • Chest pain or tightness.
  • Rapid or irregular heartbeat.
  • Shortness of breath.
  • Severe headache.
  • Seizures.
  • Changes in vision.
  • Weakness or numbness on one side of the body.
  • Slurred speech.
  • Stomach pain or bloody diarrhea.

This is not an exhaustive list, and other side effects may occur. If you experience any unusual or severe side effects while taking Imitrex injection stat dose prefilled syringe refill, contact your healthcare provider for medical advice.

Discuss any allergies to sumatriptan, other triptan medications (like zolmitriptan), or inactive ingredients (like latex) with your healthcare provider.

Inform your healthcare provider about:

  • Blood circulation problems
  • Specific headache types (hemiplegic or basilar migraine)
  • Heart problems (chest pain, irregular heartbeat, prior heart attack)
  • Liver disease
  • Seizures
  • Stroke or "mini-stroke" (transient ischemic attack)

Tell your healthcare provider if you have any of these:

  • High blood pressure
  • High cholesterol
  • Diabetes
  • Family history of heart disease
  • Overweight
  • Smoker
  • Postmenopausal (women)
  • Age over 40 years (men)

If at high risk, your healthcare provider may require a heart check before prescribing Imitrex.

Imitrex may cause dizziness or drowsiness. Avoid driving, operating machinery, or activities requiring alertness until the effects wear off.

Limit alcohol consumption as it can worsen dizziness.

Inform your healthcare provider about marijuana (cannabis) use, as it can interact with Imitrex.

Older adults may be more sensitive to side effects, especially high blood pressure and heart problems.

Imitrex should only be used during pregnancy if clearly necessary. Discuss risks and benefits with your healthcare provider.

Imitrex passes into breast milk in small amounts. Consult your healthcare provider before breastfeeding.

Brand Name:

Imitrex Injection Stat Dose Prefilled Syringe Refill

Generic name:


Other Names:

Imitrex Injection Stat Dose Pen Refill

Strength(s): 6mg/0.5mL
Quantities Available: 2, 4

Prefilled Pen

Important Information
The information above for Imitrex Injection Stat Dose Prefilled Syringe Refill (Sumatriptan) was provided to by third parties. In no way should this information substitute for the advice of a physician. Consult a doctor or qualified health care professional if you have any medical concerns. widget logo
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