Phenergan
Phenergan belongs to a group of drugs called phenothiazines. It works by changing the actions of chemicals in your brain. Promethazine also acts as an antihistamine. It blocks the effects of the naturally occurring chemical histamine in your body. Promethazine is used to relieve or prevent the symptoms of hay fever, allergic conjunctivitis (inflammation of the eye), and other types of allergy or allergic reactions. It works by preventing the effects of a substance called histamine, which is produced by the body. Histamine can cause itching, sneezing, runny nose, and watery eyes.
It can sometimes close up the bronchial tubes (air passages of the lungs) and make breathing difficult. Phenergan also known is also found in combination with other medications such as phenylephrine (Prometh Hydrochloride), codeine (Prometh VC), or dextromethorphan (Promethazine DM). Phenergan also prevents motion sickness, and treats nausea and vomiting or pain after surgery. It is also used as a sedative or sleep aid. Phenergan is used to treat allergy symptoms such as itching, runny nose, sneezing, itchy or watery eyes, hives, and itchy skin rashes. Phenergan is not for use in treating symptoms of asthma, pneumonia, or other lower respiratory tract infections.
Promethazine is also used to prevent and control motion sickness, nausea, vomiting, and dizziness. In addition, it may be used to help people go to sleep and control their pain or anxiety before or after surgery or other procedures. Promethazine should not be given to a child younger than 2 years old. Phenergan can cause severe breathing problems or death in very young children. Carefully follow your pharmacist, doctor’s instructions when giving this medicine to a child of any age. You should not take Phenergan if you are allergic to promethazine or to similar medicines such as chlorpromazine, fluphenazine, mesoridazine, perphenazine, prochlorperazine, thioridazine, or trifluperazine.