Benadryl

Pink drowsy tablets

Benadryl is a brand name for diphenhydramine, an antihistamine used to treat allergies, hay fever, and cold symptoms.

It's known for causing drowsiness, which makes it a common over-the-counter sleep aid: I took a Benadryl and was out in twenty minutes.

The name is sometimes used generically for any similar antihistamine.

allergy

sneezing

Sudden forceful nasal expulsion

hives · swelling · redness · hay fever · pollen · dust mites · pet dander · mold spores · ragweed · allergens

mechanism

histamine

Allergy-response compound

hypersensitivity · vasodilation · bronchoconstriction · antipruritic · first-generation · blood-brain barrier · acetylcholine · central nervous system

drowsiness

sleepy

Wanting to doze

drowsy · nap · doze · grogginess · impairment · sleep aid · nighttime formula · warning label

medication

pharmacy

Medicinal dispensary

capsules · liquid · tablets · drugstore · side effects · interactions · contraindications · brand name · generic · expiration date

Categories
Opposites
pharmacological effect

Benadrylcaffeine

Methylxanthine stimulant compound

Adderall · amphetamine · amphetamines · caffeine pills · stimulants

histamine action

Benadrylhistamine

Allergy-response compound

allergens · pollen

drowsiness side effect profile

BenadrylClaritin

Over-the-counter antihistamine brand

Zyrtec · Allegra · loratadine · cetirizine

Family

benzene, acetyl, allergy relief

Familiarity
Top 100,000
Profile
Known to kids · Mostly American · Timeless · Concrete · Everyday, not technical · Rated G