Epinephrine: Uses, Side Effect

Epinephrine is a chemical that narrows blood vessels and opens airways in the lungs. These effects can reverse severe low blood pressure, wheezing, severe skin itching, hives, and other symptoms of an allergic reaction.

Epinephrine injection is used to treat severe allergic reactions (anaphylaxis) to insect stings or bites, foods, drugs, and other allergens.

Epinephrine auto-injectors may be kept on hand for self-injection by a person with a history of severe allergic reaction. epinephrine injection is for use in adults and children who weigh at least 16.5 pounds (7.5 kilograms).

Epinephrine is also used to treat exercise-induced anaphylaxis, or to treat low blood pressure that is caused by septic shock.

Epinephrine injection may also be used for purposes not listed in this medication guide.

Before taking this medicine

Before using epinephrine, tell your doctor if any past use of epinephrine injection caused an allergic reaction to get worse.

Tell your doctor if you have ever had:

  • heart disease or high blood pressure;
  • asthma;
  • Parkinson’s disease;
  • depression or mental illness;
  • a thyroid disorder; or
  • diabetes.

Having an allergic reaction while pregnant or nursing could harm both mother and baby. You may need to use epinephrine during pregnancy or while you are breast-feeding. Seek emergency medical attention right away after using the injection.

In an emergency, you may not be able to tell caregivers if you are pregnant or breast feeding. Make sure any doctor caring for your pregnancy or your baby knows you received this medicine.

Side effects

Before using epinephrine, tell your doctor if any past use of epinephrine injection caused an allergic reaction to get worse.

Call your doctor at once if you notice pain, swelling, warmth, redness, or other signs of infection around the area where you gave an injection.

Common side effects may include:

  • breathing problems;
  • fast or pounding heartbeats;
  • pale skin, sweating;
  • nausea and vomiting;
  • dizziness;
  • weakness or tremors;
  • throbbing headache; or
  • feeling nervous, anxious, or fearful.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

What other drugs will affect epinephrine injection?

Other drugs may affect epinephrine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.


Keyword: epinephrine.

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.