Diphenhydramine HCl Oral Solution

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 Oral Solution
Generic name
DIPHENHYDRAMINE HYDROCHLORIDE
Manufacturer
Natco Pharma USA LLC
Product type
HUMAN OTC DRUG
SPL set ID
54b64354-ac10-42ff-a53d-96cef933a91a
SPL ID
6c998d25-3573-4c6b-822a-1c16eeddd642
Version
6
Effective date
2023-11-01
Source export date
2026-10-12
Source partition
1
Source file
https://download.open.fda.gov/drug/label/drug-label-0001-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-10-12/7928c8e8c6256620071a8b7e5b93eb8dfa543649c08d17a01ea02251012ba58c/drug-label-0001-of-0014.json.zip
Source manifest SHA-256
7e6b178df8f32cac9a78e0f5d09c588344509b04fe41effb1dde9102e2a45be6
Import run
20261013T011858Z
Imported at
2026-10-13 01:26:54
Harmonized routes table
Harmonized routes
ORAL

Warnings cross-check#

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Warnings sections page 1 of 1 · 1 matching rows.

warnings

Warnings Do not use • in neonates or premature infants • if pregnant or breast-feeding • if hypersensitive to diphenhydramine HCI and other similar antihistamine • with any other product containing diphenhydramine, even one used on skin • to make a child sleepy Ask a doctor before use if you have • glaucoma • a breathing problem such as emphysema or chronic bronchitis • a sodium restricted diet • trouble urinating due to enlarged prostate gland Ask a doctor or pharmacist before use if you are taking tranquilizers or sedatives When using this product • marked drowsiness may occur • avoid alcoholic drinks • alcohol, sedatives, and tranquilizers may increase drowsiness • be careful when driving a motor vehicle or operating machinery • excitability may occur, especially in children Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away (1-800-222-1222)

Reported adverse events (FAERS/openFDA)#

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