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A member asked:
Can i take allegra (fexofenadine) d and wall-som sleep aid at the same time.
A doctor has provided 1 answer
Drug duplication: I assume you're referring to Wal-Som brand of diphenhydramine (https://www.drugs.com/otc/119159/wal-som.html) which is often used for its sedative properties. In actuality, diphenhydramine is an antihistamine in same class as fexofenadine, active ingredient of Allegra (and Allegra-D) so there's duplication of drugs and potentially their effects. Check out https://goo.gl/T9ytK3 for interactions
Answered 7/3/2016
1.2k views
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