A member asked:

I am on phentermine and cannot sleep due to the numerous bug bites i have. i took one benadryl (diphenhydramine) allergy. anything i need to watch using both these meds?

4 doctors weighed in across 2 answers
Dr. Natalie Hodge answered

Specializes in Pediatrics

Minimal concerns: Usually if anything Phentermine will keep you from sleeping. Benadryl (diphenhydramine) is sedating. This should be fine. I am not concerned! Hope you can get a good night's rest!

Answered 8/7/2016

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Drug to drug: Increased drying of mucus glands in eyes, nose , throat may occur. Internal eye pressure may increase and you may experience difficulty with urination or constipation

Answered 3/9/2017

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Related Questions

A member asked:

Can I take Benadryl (diphenhydramine) allergy pills to sleep?

A doctor has provided 1 answer