Qualitest Promethazine with Codeine is a prescription cough syrup that utilizes two active ingredients: promethazine and codeine. Promethazine is an antihistamine that helps to alleviate allergy symptoms like itching, https://vinnyhovb654115.pointblog.net/qualitest-promethazine-with-codeine-understanding-its-uses-and-effects-79808479