What’s the Difference Between Codeine and Promethazine Cough Syrup?
BuzzRx
NOVEMBER 29, 2022
Promethazine works by preventing the effects of histamine, a natural substance in the body created by immune cells that causes symptoms like sneezing, runny nose, coughing, and watery eyes. Read the prescription label carefully and take this medicine exactly as directed. Promethazine is not a narcotic.
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