Only the maker knows: Since Benadryl (diphenhydramine) in any form does not work any faster than the rest, I suspect that the manufacturer has stopping making it due to lack of demand. However there are many potential causes including problem with the FDA or manufacturing.
Answered 4/21/2015
2.9k views
3 doctors weighed in across 2 answers
4 doctors weighed in across 2 answers
A doctor has provided 1 answer
4 doctors weighed in across 2 answers
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