Adrenaline delivery devices are medical tools designed to administer adrenaline, a hormone that can quickly treat severe allergic reactions, known as anaphylaxis. These devices are typically pre-filled syringes or auto-injectors that allow individuals to self-administer the medication in emergencies. Common examples of these devices include the EpiPen and Auvi-Q. They are easy to use and can be carried in a pocket or bag, making them accessible for those at risk of anaphylaxis. Prompt use of an adrenaline delivery device can be life-saving, providing critical support until professional medical help arrives.