OTC · Tablet, Film Coated · Oral
Diphenhydramine Hydrochloride
Brands: Allergy · Allergy Relief · Allergy Relief Caplet · Benadryl +19 · Diphenhydramine Hydrochloride
30 ACTIVE SUPPLIERS — US
openFDA · updated weekly
US44 NDCs
30 active makers
30 active makers
UKComing
soon
soon
CAComing
soon
soon
AUComing
soon
soon
EUComing
soon
soon
US acquisition costNADAC · per unit
Average across 4 priced NDCs. A benchmark of pharmacy acquisition cost — not a retail quote.
$0.041
Latest avg · Jul 22, 2026
+2%
Since Dec 17, 2025
30
Active US suppliers
24%
Top-2 supplier share*
Pill