Patient :My mom is allergic to benadryl and she has never taken any type of antihistamine but her doctor prescribed her cyproheptadine to help her sleep. Will she have a reaction to it being she is allergic to benadryl?
Hello. Welcome to Ask The Doctor.
Cyproheptadine is a different class of drug then Benadryl.
Ideally it should not cause any reaction. In case she gets any reaction then I would say that she might be allergic to this drug also.
I hope it helps.
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