Promethazine

Promethazine is a medication commonly used to treat allergies, motion sickness, and nausea. It belongs to a class of drugs called antihistamines, which help block the effects of histamine—a substance in the body that causes allergic symptoms. Promethazine can also be used as a sedative to help with sleep. It’s available in various forms, including tablets, liquids, and injections. While effective, it can cause side effects like drowsiness or dizziness, so it's important to use it as directed by a healthcare professional. Always consult your doctor if you have questions about its use.