Diphenhydramine Hydrochloride

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 Hydrochloride
Generic name
DIPHENHYDRAMINE HYDROCHLORIDE
Manufacturer
Walgreen Company
Product type
HUMAN OTC DRUG
SPL set ID
d9f650b5-3c27-17cf-e053-2995a90af48a
SPL ID
1134343b-ae9d-7a46-e063-6394a90a9e43
Version
3
Effective date
2024-02-12
Source export date
2026-10-12
Source partition
12
Source file
https://download.open.fda.gov/drug/label/drug-label-0012-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-10-12/edd23646015c9adc800cdbe2b778398a2d2b70e90dce5721ef2b191499a0397f/drug-label-0012-of-0014.json.zip
Source manifest SHA-256
7e6b178df8f32cac9a78e0f5d09c588344509b04fe41effb1dde9102e2a45be6
Import run
20261013T011858Z
Imported at
2026-10-13 02:51:51
Harmonized routes table
Harmonized routes
ORAL

Warnings cross-check#

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Warnings sections page 1 of 1 · 1 matching rows.

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  trouble urinating due to an enlarged 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 drinks  alcohol, sedatives and tranquilizers may increase drowsiness  use caution when driving a motor vehicle or operating machinery  excitability may occur, especially in children 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 (1-800-222-1222) right away.

Reported adverse events (FAERS/openFDA)#

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