A 52-year-old member asked:
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can i take benadryl (diphenhydramine) and qnasl?

1 doctor answer
Dr. Sunita Kanumury
34 years experience Allergy and Immunology
Yes: Yes they work in combination for upper respiratory allergies.
Answered on Apr 20, 2017

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Yes: Yes, that is the maximum dose.
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No: Combination isn't advisable, benadryl (diphenhydramine) may increase CNS depressive effects of virtussin, better see your doctor if the cough is reall ... Read More
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Not recommended: that is above the usual dose and will likely produce significant sleepiness. Even one might be a problem with driving. Furthermore, it is very unlikel ... Read More
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