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Allergy Relief

NDC 79903-491 · Walmart Inc.

Generic nameDiphenhydramine HCl
Dosage formTABLET, FILM COATED
RouteORAL
Active ingredient(s)DIPHENHYDRAMINE HYDROCHLORIDE
Strength25 mg/1
Pharmacologic classHistamine H1 Receptor Antagonists [MoA], Histamine-1 Receptor Antagonist [EPC]
Marketing categoryOTC MONOGRAPH DRUG

Packages

79903-491-10 — 1 BOTTLE in 1 CARTON (79903-491-10) / 100 TABLET, FILM COATED in 1 BOTTLE

Related Codes

Same active ingredient

FDA lists these products with the same active ingredient.

79903-298 — Acetaminophen, Diphenhydramine Hydrochloride, 79903-307 — Acetaminophen, Diphenhydramine HCl, 79903-310 — Diphenhydramine Hydrochloride, 79903-356 — acetaminophen, diphenhydramine hydrochloride, 79903-368 — Diphenhydramine HCl, 79903-400 — Diphenhydramine hydrochloride, 79903-411 — Diphenhydramine HCl, 79903-421 — acetaminophen, diphenhydramine hydrochloride, 79903-426 — Diphenhydramine HCl, 79903-434 — Acetaminophen, Diphenhydramine HCl, 79903-967 — Diphenhydramine HCl, 79903-968 — Diphenhydramine HCl, 80070-340 — DIPHENHYDRAMINE HYDROCHLORIDE and PHENYLEPHRINE HYDROCHLORIDE, 80136-785 — Diphenhydramine HCl, 80267-431 — Diphenhydramine Hydrochloride, 80489-005 — ZINC ACETATE , DIPHENHYDRAMINE, 80513-201 — Diphenhydramine HCl, 80513-301 — ACETAMINOPHEN, DEXTROMETHORPHAN HBR, PHENYLEPHRINE, 80513-383 — Diphenhydramine HCl, 80513-722 — Diphenhydramine HCl, +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