Anaphylaxis (anaphylactic shock) occurs when the body’s immune system overreacts to a substance, such as a food item. It is an unpredictable condition that can be life threatening. EpiPen is an adrenaline auto-injector used for the acute treatment of anaphylactic shock or severe allergic reactions to allergens, . insect bites or foods. Meda has received a label extension for EpiPen and the product is now also intended for immediate administration in patients who are determined to be at increased risk of anaphylaxis (including patients with a history of anaphylactic reactions). People at risk of anaphylactic shock should always carry an adrenaline injector. The at-risk indication is further endorsed by the new guidelines of the European Academy of Allergy and Clinical Immunology (EAACI).