Promethazine 25mg Tablet is an antihistamine used to treat a variety of conditions, including allergic reactions, nausea, motion sickness, and insomnia. The active ingredient, Promethazine, works by blocking histamine, a substance in the body that causes allergic symptoms like sneezing, itching, and runny nose. It is also used as a sedative and to treat nausea and vomiting. This pack contains 1000 tablets. Always follow the prescribed dosage and consult a healthcare provider for proper use.