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Allergy Relief

NDC 51316-180 · CVS WOONSOCKET PRESCRIPTION CENTER, INCORPORATED

Generic nameDiphenhydramine HCl
Dosage formSOLUTION
RouteORAL
Active ingredient(s)DIPHENHYDRAMINE HYDROCHLORIDE
Strength12.5 mg/5mL
Pharmacologic classHistamine H1 Receptor Antagonists [MoA], Histamine-1 Receptor Antagonist [EPC]
Marketing categoryOTC MONOGRAPH DRUG

Packages

51316-180-19 — 1 BOTTLE, PLASTIC in 1 CARTON (51316-180-19) / 237 mL in 1 BOTTLE, PLASTIC

51316-180-36 — 1 BOTTLE, PLASTIC in 1 CARTON (51316-180-36) / 118 mL in 1 BOTTLE, PLASTIC

Related Codes

Same active ingredient

FDA lists these products with the same active ingredient.

50844-235 — Acetaminophen, Diphenhydramine HCl, 50844-250 — Diphenhydramine HCl, 50844-256 — Acetaminophen, Diphenhydramine HCl, 50844-329 — Diphenhydramine HCl, 50844-556 — Acetaminophen, Diphenhydramine HCl, 51013-817 — Diphenhydramine HCl 50mg, 51027-0330 — diphenhydramine hydrochloride, menthol, 51316-150 — Diphenhydramine HCl, 51316-153 — Diphenhydramine HCl, 51316-154 — Diphenhydramine HCl, 51316-186 — DIPHENHYDRAMINE HYDROCHLORIDE, 51316-191 — DIPHENHYDRAMINE HYDROCHLORIDE, 51316-221 — Diphenhydramine HCl, 51316-347 — Diphenhydramine Hydrochloride, 51316-367 — Diphenhydramine HCl, 51316-485 — Diphenhydramine HCl, Phenylephrine HCl, 51316-561 — Acetaminophen, Diphenhydramine HCl, 51316-687 — Diphenhydramine HCI 25 mg, 51316-710 — Diphenhydramine hydrochloride, 51316-733 — Acetaminophen , Diphenhydramine Hydrochloride,Phenylephrine Hydrochloride, +1029 more

From the FDA National Drug Code Directory, retrieved August 24, 2026. Product listings are submitted by labelers; FDA does not verify them.

Read from: FDA National Drug Code Directory, product.txt and package.txt (accessdata.fda.gov/cder/ndctext.zip) — Snapshot retrieved 2026-08-24, loaded 2026-08-24; CMS Medicare Part B Drug Average Sales Price (ASP) Pricing Files (cms.gov/medicare/payment/part-b-drugs/asp-pricing-files) -- the NDC-HCPCS crosswalk and Part B payment limit files — 2026 Q3 (July 2026 release). All data sources · How to read the labels