United States · FDA National Drug Code directory
Diphenhydramine HCl
A source-listed medicine record.
Factual source checks only. This page is not a clinically reviewed monograph. Historical or discontinued records may be included; listing does not confirm approval, current availability or pharmacy stock.
Medicine identity
- Source reference
- 55289-479_30c8d0aa-5859-b584-e063-6394a90ac88e
- Product NDC
- 55289-479
- Form
- CAPSULE
- Composition / generic term
- Diphenhydramine HCl
- Labeler
- PD-Rx Pharmaceuticals, Inc.
- Marketing category
- OTC MONOGRAPH DRUG
- Marketing start / end (source format)
- 20160201
- Source listing expiry
- 20261231
Source-listed ingredients
- DIPHENHYDRAMINE HYDROCHLORIDE — 25 mg/1
These values do not establish equivalence or a dose recommendation.
Packages
- 10 CAPSULE in 1 BOTTLE, PLASTIC (55289-479-10) · 55289-479-10
- 12 CAPSULE in 1 BOTTLE, PLASTIC (55289-479-12) · 55289-479-12
- 15 CAPSULE in 1 BOTTLE, PLASTIC (55289-479-15) · 55289-479-15
- 20 CAPSULE in 1 BOTTLE, PLASTIC (55289-479-20) · 55289-479-20
- 24 CAPSULE in 1 BOTTLE, PLASTIC (55289-479-24) · 55289-479-24
- 30 CAPSULE in 1 BOTTLE, PLASTIC (55289-479-30) · 55289-479-30
Source and coverage
Open FDA National Drug Code directory →
Snapshot retrieved: 2026-09-17. This is the acquisition date, not a medical review date.
Clinical information, images and comparisons appear only when separately reviewed for this record. Coverage may be incomplete. Ask a pharmacist or clinician about your treatment.
Browse United States records →