What class of antihistamine is benadryl?
Diphenhydramine
{'answer_start': array([249]), 'answer_text': array(['first generation H1-antihistamine'], dtype=object)}
Common side effects include sleepiness, poor coordination, and an upset stomach.[6] Its use is not recommended in babies.[6] There is no clear risk of harm when used during pregnancy; however, use during breastfeeding is not recommended.[7] It is a first generation H1-antihistamine and works by blocking certain effects of histamine.[6] Diphenhydramine is also an anticholinergic.[8]