The EpiPen contains a single dose of epinephrine that is automatically injected into the thigh muscle when the pen is pressed against the skin. Epinephrine acts immediately to stop anaphylaxis, which is a severe allergic reaction that can involve swelling of the mouth, throat, or airways and cause difficulty breathing or a drop in blood pressure. If symptoms of anaphylaxis occur, the EpiPen should be used immediately by injecting it into the thigh muscle according to instructions and calling 911, as additional doses may be needed to counteract the reaction.

1. EpiPen
Epinephrine Auto-Injector to stop anaphylaxis
Sources:
http://www.epipen.com/how-to-use-epipen
Image Credit: http://commons.wikimedia.org/wiki/File:Epi-Pen_(1).JPG

2. What is an EpiPen?
EpiPen contains a single dose of epinephrine.
 The EpiPen is designed to automatically inject the
epinephrine when you stick the needle into the
muscle of your outer thigh.
 The epinephrine acts immediately to stop
anaphylaxis, but it may be necessary to give
repeat doses.
EpiPen
Image Credit: http://epipen.com/

3. When do I use my EpiPen?
Anaphylaxis is highly likely if at least one of
the following three conditions occurs:
Your symptoms appear within minutes to several
hours AND involve skin or swelling inside your
mouth, AND you also have trouble breathing or
have a drop in blood pressure.
 Swelling in your mouth, tongue, or throat
 Chest tightness, Wheezing, Shortness of breath
 Light headedness, Dizziness, Loss of
consciousness
EpiPen
http://commons.wikimedia.org/wiki/File:Signs_and_symptoms_of_anaphylaxis.png
Use your EpiPen, if you experience:

4. How do I use my EpiPen?
Source: http://www.epipen.com/how-to-use-epipen
EpiPen

5. Anaphylaxis Treatment
Call 9-1-1, then…
 Inject the EpiPen (epinephrine) into the thigh
muscle, as instructed by your doctor.
 Epinephrine acts immediately, but it may be
necessary to give repeat doses.
 After epinephrine has been given, the patient
can be placed in a reclining position with feet
elevated to help restore normal blood flow.
 Keep the auto-injector to show your healthcare
provider
EpiPen
Image Credit: http://mrg.bz/J9dDOg