Diphenhydramine brand name?

What brand names does diphenhydramine go by?

Diphenhydramine is sold under multiple brand names, depending on the product type (tablets, capsules, liquid, sleep aids) and the country. Common U.S. brand examples include:

- Benadryl (the best-known brand for diphenhydramine, typically for allergy symptoms and hives)
- Unisom SleepGels / Unisom SleepTabs (some formulations of these sleep-aid products use diphenhydramine)

How can you tell if a specific product contains diphenhydramine?

Check the “Active ingredient” line on the Drug Facts label. If it says “Diphenhydramine” (often “diphenhydramine hydrochloride”), then the brand name is just the company’s label for that same active drug.

Why are there multiple brands and formulations?

Manufacturers market diphenhydramine in different dosage forms and for different uses (allergy relief vs. nighttime sleep). That leads to different brand names even though the active ingredient is the same.