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A 26-year-old female asked:

I have a sinus headache due to a cold. i took a 24 hour claritin pill this morning, but it didnt help. can i take benadryl (diphenhydramine) now? its only been 12 hrs.

1 doctor answer1 doctor weighed in
Dr. Sewa Legha
Medical Oncology 51 years experience
Yes you can: it might make you a bit more sleepy. But that should not be a problem now that it is time to sleep.

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Last updated May 10, 2021

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