A member asked:

Does using benadryl (diphenhydramine) cause certain symptoms like difficulty breathing?

A doctor has provided 1 answer
Dr. Alvaro Aranda answered

Specializes in Pulmonology

Yes: It is a sedative antihistamine. Causes drowsiness, dryness of respiratory system & even impair breathing in elderly patient & otherr very affected ones. A high dose of Benadryl (diphenhydramine) (over 150 mg) can cause depression of system & is compare to 0.08% of alcohol effect in the brain.

Answered 6/24/2014

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Can too much Benadryl (diphenhydramine) make u stop breathing?

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