Diphenhydramine HCl

openFDA label record#

This page contains supplementary openFDA label data. For the canonical label presentation, use the corresponding DailyMed Structured Product Label.

Verified complete openFDA source JSON (canonical bytes are SHA-256 checked before publication)

Brand name
Diphenhydramine HCl
Generic name
DIPHENHYDRAMINE HCL
Manufacturer
Major Pharmaceuticals
Product type
HUMAN OTC DRUG
SPL set ID
93753885-6add-462c-9df8-b0a1b9ce36c9
SPL ID
55040745-19fa-459a-bf98-e6eddbcb029e
Version
15
Effective date
2026-08-28
Source export date
2026-09-28
Source partition
3
Source file
https://download.open.fda.gov/drug/label/drug-label-0003-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-09-28/fd09911bd1bc81f7f2faeb048e63855fe224e494376ae919a0035190e315c050/drug-label-0003-of-0014.json.zip
Source manifest SHA-256
cd2e66336a5cd2223fa3995098fdbdb84c6a7ee5c0a4addb236ccb22dd1e6887
Import run
20260929T050834Z
Imported at
2026-09-29 05:19:50
Harmonized routes table
Harmonized routes
ORAL

Warnings cross-check#

openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.

Warnings sections page 1 of 1 · 1 matching rows.

warnings

Warnings Do not use to make a child sleepy with any other product containing diphenhydramine, even one used on skin Ask a doctor before use if you have a breathing problem such as emphysema or chronic bronchitis glaucoma difficulty in urination due to enlargement of the prostate gland Ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers. When using this product marked drowsiness may occur avoid alcoholic beverages alcohol, sedatives, and tranquilizers may increase drowsiness excitability may occur, especially in children use caution when driving a motor vehicle or operating machinery If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.