Dextromethorphan cough syrup
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Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex. .. Chlorpheniramine, dextromethorphan, and phenylephrine is a combination medicine used to treat cough, runny or stuffy nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu.