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A member asked:
Can one's body develop a resistance to benadryl (diphenhydramine) if one takes it on a daily basis? will the medicine eventually lose it's effectiveness as time passes?
A doctor has provided 1 answer
Yes: All antihistamines can lose effectiveness. Most are over the counter now and i'd recommend switching to another family like allegra, claritin, (loratadine) or tavist.
Answered 11/28/2017
5.9k views
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