Is Promethazine DM a Cough Suppressant or an Expectorant?
Learn if Promethazine DM works as a cough suppressant or expectorant, and understand its active ingredients and their functions.
Video transcript
Promethazine DM contains two active ingredients: dextromethorphan (a cough suppressant) and promethazine (an antihistamine). The dextromethorphan component helps reduce the urge to cough, making Promethazine DM primarily a cough suppressant rather than an expectorant.
Questions and answers
What active ingredients are in Promethazine DM?
Promethazine DM contains dextromethorphan, which is a cough suppressant, and promethazine, which is an antihistamine.
Does Promethazine DM help loosen mucus?
No, Promethazine DM primarily acts as a cough suppressant and antihistamine, not as an expectorant to loosen mucus.
How does dextromethorphan in Promethazine DM work?
Dextromethorphan suppresses the cough reflex by acting on the brain's cough center, reducing the urge to cough.
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