P&G urges diphenhydramine/dextromethorphan combo use as antihistamine/antitussive.
This article was originally published in The Tan Sheet
Executive Summary
DIPHENHYDRAMINE/DEXTROMETHORPHAN COMBO AS ANTIHISTAMINE/ANTITUSSIVE should be permitted if the diphenhydramine com-ponent is kept to the lowest recommended dose, Procter & Gamble urged in May 9 comments to FDA. P&G advised that "a combination of diphenhydramine and dextromethorphan be permitted when the lowest dosage level of diphenhydramine is used for the antihistamine indication and...dextromethorphan [is] maintained as the antitussive component."