Final answer:
Epinephrine is used to rescue a person experiencing anaphylaxis.
Step-by-step explanation:
Epinephrine is used to rescue a person experiencing anaphylaxis. Anaphylaxis is a severe allergic reaction that can be life-threatening. Epinephrine works by raising blood pressure, relaxing bronchial smooth muscle, and reducing swelling. People with known severe allergies often carry an auto-injector, such as an EpiPen, that contains epinephrine and can be used to administer the drug in case of exposure to an allergen.