Avoid it: Allegra probably has the least drowsiness effect and works at least just as well. The drowsiness effect from Benadryl (diphenhydramine) may decrease with time if one takes it daily. But why when there are some many other alternatives?
Answered 6/24/2014
5k views
A doctor has provided 1 answer
6 doctors weighed in across 3 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question