OTC · Tablet, Coated · Oral
Diphenhydramine Hydrochloride
Brands: Allergy · Allergy Relief · Careall Allergy Relief · Careall Diphenhydramine +4 · Diphenhydramine Hydrochloride
19 ACTIVE SUPPLIERS — US
openFDA · updated weekly
US32 NDCs
19 active makers
19 active makers
UKComing
soon
soon
CAComing
soon
soon
AUComing
soon
soon
EUComing
soon
soon
US acquisition costNADAC · per unit
Average across 2 priced NDCs. A benchmark of pharmacy acquisition cost — not a retail quote.
$0.046
Latest avg · Jul 22, 2026
+6%
Since Dec 17, 2025
19
Active US suppliers
34%
Top-2 supplier share*
Pill