Final answer:
Epinephrine's effects typically last for about 5 to 20 minutes and include raising blood pressure and relaxing bronchial smooth muscles. After its effects wear off, medical attention and follow-up treatment are important to prevent potential late-phase reactions.
Step-by-step explanation:
Epinephrine, also known as adrenaline, is a hormone that is used to counteract the effects of severe allergic reactions, such as anaphylaxis. It works by raising blood pressure and relaxing bronchial smooth muscles.
The effects of epinephrine typically last for about 5 to 20 minutes, but can vary depending on factors such as dosage and individual response. After the effects of epinephrine wear off, it is important for individuals to seek medical attention and follow up with appropriate treatment to prevent potential late-phase reactions.