diphenhydramine
Noun
Meaning
antihistamine (trade name Benadryl) used to treat allergic reactions involving the nasal passages (hay fever) and also to treat motion sickness
Source: WordNetSynonyms
Hypernyms
Examples
In addition, many formulations are combined with other medications such as Tylenol so make sure Benadryl tablets contain only diphenhydramine.
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.
“If your pet is itching or starting to swell, over-the-counter Benadryl (diphenhydramine) should be administered.