Noun
antihistamine (trade name Benadryl) used to treat allergic reactions involving the nasal passages (hay fever) and also to treat motion sickness
Source: WordNetIn addition, many formulations are combined with other medications such as Tylenol so make sure Benadryl tablets contain only diphenhydramine. Source: Internet
OTC sleep aids, such as Advil PM, Sominex, ZzzQuil, Unisom and others, contain diphenhydramine, an antihistamine that blocks brain receptors that cause wakefulness; so they can cause sleepiness instead. Source: Internet
“If your pet is itching or starting to swell, over-the-counter Benadryl (diphenhydramine) should be administered. Source: Internet