A 34-year-old female asked:
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i drank one packet of theraflu nighttime severe cough & cold about 4 hrs ago, my cough will not stop. can i take 2.5ml of promethazine-codeine syrup?

1 doctor answer
Dr. Donald Colantino
60 years experience Internal Medicine
Cough : Both contain an antihistamine. Theraflu doesn't contain an effective cough suppressant but promethazine-codeine does. If you have a dry irritating and persistent cough, I would take this suppressant syrup and I don't think it will be a problem to take it again according to the dosage instructions.
Answered on Jan 25, 2020

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