Rx only · Tablet, Film Coated · Oral
Diphenhydramine Hcl
Brands: Aller-Ben · Allergy · Allergy Medicine · Allergy Relief +10 · Diphenhydramine Hydrochloride
30 ACTIVE SUPPLIERS — US
openFDA · updated weekly
US55 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 13 priced NDCs. A benchmark of pharmacy acquisition cost — not a retail quote.
$0.040
Latest avg · Jul 22, 2026
+1%
Since Dec 17, 2025
30
Active US suppliers
18%
Top-2 supplier share*
Pill