Imitrex Injection

DRUG DESCRIPTION

IMITREX (sumatriptan succinate) Injection is a selective 5-hydroxytryptamine1 receptor subtype agonist. Sumatriptan succinate is chemically designated as 3-[2-(dimethylamino)ethyl]N-methyl-indole-5-methanesulfonamide succinate (1:1), and it has the following structure:

IMITREX®
(sumatriptan succinate) Structural Formula Illustration

The empirical formula is C14H21N3O2S•C4H6O4, representing a molecular weight of 413.5.

Sumatriptan succinate is a white to off-white powder that is readily soluble in water and in saline.

IMITREX Injection (sumatriptan succinate injection) is a clear, colorless to pale yellow, sterile, nonpyrogenic solution for subcutaneous injection. Each 0.5 mL of IMITREX Injection (sumatriptan succinate injection) 8 mg/mL solution contains 4 mg of sumatriptan (base) as the succinate salt and 3.8 mg of sodium chloride, USP in Water for Injection, USP. Each 0.5 mL of IMITREX Injection 12 mg/mL solution contains 6 mg of sumatriptan (base) as the succinate salt and 3.5 mg of sodium chloride, USP in Water for Injection, USP. The pH range of both solutions is approximately 4.2 to 5.3. The osmolality of both injections is 291 mOsmol.

What are the possible side effects of sumatriptan injection (Imitrex, Imitrex Statdose, Imitrex Statdose Refill)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using sumatriptan and call your doctor if you have a serious side effect such as:

  • chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling;
  • sudden numbness or weakness, especially on one side of the body;
  • sudden headache, confusion, problems...

Read All Potential Side Effects and See Pictures of Imitrex Injection »

What are the precautions when taking sumatriptan succinate injection (Imitrex Injection)?

See also How to Use section.

Before using sumatriptan, tell your doctor or pharmacist if you are allergic to it; or to other triptan drugs (e.g., zolmitriptan, rizatriptan); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be taken if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: heart disease (e.g., chest pain, heart attack), decreased blood flow in the brain (e.g., stroke, transient ischemic attack), blood circulation disease (e.g., ischemic bowel disease), uncontrolled high blood pressure (hypertension), certain types of headaches (hemiplegic or...

Read All Potential Precautions of Imitrex Injection »


Imitrex Injection Consumer (continued)

SIDE EFFECTS: Pain, swelling, bleeding, or bruising at the injection site may occur. Flushing, sensations of tingling/numbness/prickling/heat, weakness, drowsiness, or dizziness may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Chest/jaw/neck tightness can commonly occur shortly after using sumatriptan. Only rarely are these signs of a serious condition. However, you may not be able to tell it apart from a serious reaction related to a lack of blood flow to the heart, brain or other parts of the body. Seek immediate medical attention if any of these unlikely but very serious (rarely fatal) side effects occur: chest pain, jaw/left arm pain, fainting, fast/irregular/pounding heartbeat, vision changes, weakness on one side of the body, confusion, slurred speech, sudden or severe stomach/abdominal pain, bloody diarrhea.

Tell your doctor immediately if any of these unlikely but serious side effects occur: blue fingers/toes/nails, cold sensation of hands/feet, hearing changes, mental/mood changes, seizures.

This medication may rarely cause a very serious condition called serotonin syndrome. The risk increases when this medication is taken with certain other drugs such as other "triptans" used to treat migraine headaches (e.g., rizatriptan, zolmitriptan), certain antidepressants including SSRIs (e.g., citalopram, fluoxetine, paroxetine) and NSRIs (e.g., duloxetine, venlafaxine), or a certain drug to treat obesity (sibutramine). Before taking this drug, tell your doctor if you take any of these medications. Serotonin syndrome may be more likely when you start or increase the dose of any of these medications. Seek immediate medical attention if you develop some of the following symptoms: hallucinations, unusual restlessness, loss of coordination, fast heartbeat, severe dizziness, high fever, severe nausea/vomiting/diarrhea, twitchy muscles.

A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching/swelling (especially of the face/tongue/throat), dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: See also How to Use section.

Before using sumatriptan, tell your doctor or pharmacist if you are allergic to it; or to other triptan drugs (e.g., zolmitriptan, rizatriptan); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be taken if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: heart disease (e.g., chest pain, heart attack), decreased blood flow in the brain (e.g., stroke, transient ischemic attack), blood circulation disease (e.g., ischemic bowel disease), uncontrolled high blood pressure (hypertension), certain types of headaches (hemiplegic or basilar migraine), liver disease.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: certain blood circulation disorders (e.g., Raynaud's disease), seizures.

Tell your doctor if you have the following risk factors for heart disease: diabetes, family history of heart disease, high blood pressure (controlled), high cholesterol, overweight, smoker, female after menopause, male over age 40.

If you are at high risk for heart disease, your doctor may want to check your heart before prescribing sumatriptan.

This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely.

The risk of heart disease, liver disease, and high blood pressure increases with age. The manufacturer does not recommend the use of sumatriptan in the elderly since they may be more sensitive to the side effects, including an increase in blood pressure.

This medication should be taken only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.

This drug passes into breast milk and may have undesirable effects on a nursing infant. Avoid breastfeeding for at least 12 hours after using sumatriptan. Consult your doctor before breast-feeding.


Imitrex Injection Patient Information Including Side Effects

Brand Names: Imitrex, Imitrex Statdose, Imitrex Statdose Refill

Generic Name: sumatriptan (injection) (Pronunciation: soo ma TRIP tan)

  • What is sumatriptan injection (Imitrex Injection)?
  • What are the possible side effects of sumatriptan injection (Imitrex Injection)?
  • What is the most important information I should know about sumatriptan injection (Imitrex Injection)?
  • What should I discuss with my health care provider before using sumatriptan injection (Imitrex Injection)?
  • How should I use sumatriptan injection (Imitrex Injection)?
  • What happens if I miss a dose (Imitrex Injection)?
  • What happens if I overdose (Imitrex Injection)?
  • What should I avoid while using sumatriptan injection (Imitrex Injection)?
  • What other drugs will affect sumatriptan injection (Imitrex Injection)?
  • Where can I get more information?

What is sumatriptan injection (Imitrex Injection)?

Sumatriptan is a headache medicine. It is believed to work by narrowing the blood vessels around the brain. Sumatriptan also reduces substances in the body that can trigger headache pain, nausea, sensitivity to light and sound, and other migraine symptoms.

Sumatriptan injection is used to treat migraine headaches and cluster headaches.

Sumatriptan will only treat a headache that has already begun. It will not prevent headaches or reduce the number of attacks.

Sumatriptan may also be used for other purposes not listed in this medication guide.

What are the possible side effects of sumatriptan injection (Imitrex Injection)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using sumatriptan and call your doctor if you have a serious side effect such as:

  • chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling;
  • sudden numbness or weakness, especially on one side of the body;
  • sudden headache, confusion, problems with vision, speech, or balance;
  • fast heart rate, agitation, muscle stiffness, hallucinations, lack of coordination, with nausea, vomiting, or diarrhea;
  • sudden and severe stomach pain and bloody diarrhea;
  • seizure (convulsions); or
  • numbness or tingling and a pale or blue-colored appearance in your fingers or toes.

Less serious side effects may include:

  • nausea, vomiting, diarrhea;
  • muscle pain;
  • warmth or redness under your skin;
  • pressure or heavy feeling in any part of your body;
  • sneezing, runny nose, congestion, cough;
  • pain or redness where you injected the medicine;
  • feeling dizzy or sleepy; or
  • drooling or sweating.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about sumatriptan injection (Imitrex Injection)?

Do not use this medication if you are allergic to sumatriptan, or if you have ischemic bowel disease, severe or uncontrolled high blood pressure, severe liver disease, or a history of heart disease, angina (chest pain), blood circulation problems, heart attack, or stroke.

Sumatriptan can cause serious side effects on the heart, including heart attack or stroke. Although these side effects are rare, do not use this medication if you have a history of heart disease, angina (chest pain), blood circulation problems, ischemic bowel disease, severe or uncontrolled high blood pressure, or history of a heart attack or stroke.

Before using sumatriptan, tell your doctor if you have a seizure disorder, high blood pressure, kidney or liver disease, coronary artery disease, or risk factors for coronary artery disease (such as diabetes, menopause, smoking, being overweight, having high blood pressure or high cholesterol, having a family history of coronary artery disease, being older than 40 and a man, or being a woman who has had a hysterectomy).

Do not use sumatriptan within 24 hours before or after using almotriptan (Axert), eletriptan (Relpax), frovatriptan (Frova), naratriptan (Amerge), rizatriptan (Maxalt), zolmitriptan (Zomig), or ergot medicine such as methysergide (Sansert), ergotamine (Ergomar, Ergostat, Cafergot, Ercaf, Wigraine), dihydroergotamine (D.H.E. 45, Migranal Nasal Spray), ergonovine (Ergotrate), or methylergonovine (Methergine).

Do not use sumatriptan if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), tranylcypromine (Parnate), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or phenelzine (Nardil) in the past 14 days.

Before using sumatriptan, tell your doctor if you are also taking an antidepressant such as citalopram (Celexa), duloxetine (Cymbalta), escitalopram (Lexapro), fluoxetine (Prozac, Sarafem), fluvoxamine (Luvox), paroxetine (Paxil), sertraline (Zoloft), or venlafaxine (Effexor).

Sumatriptan will only treat a headache that has already begun. It will not prevent headaches or reduce the number of attacks.

After using a sumatriptan injection, you must wait one (1) hour before using a second injection. Do not use more than two injections in 24 hours.

Related Drug Centers
  • Imitrex Injection


Related Drugs Index: