Hydroquinone 4%

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
Hydroquinone 4%
Generic name
HYDROQUINONE
Manufacturer
SOHM, Inc.
Product type
HUMAN PRESCRIPTION DRUG
SPL set ID
47f0cbfb-b73b-4572-95d2-992c7382df3a
SPL ID
d639c140-a4bf-41cd-8ca3-45ee38a2c0b5
Version
1
Effective date
2023-06-05
Source export date
2026-10-12
Source partition
8
Source file
https://download.open.fda.gov/drug/label/drug-label-0008-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-10-12/fa098e7c5cff0b1ab653ce934059d1f4b90b860bafc0383a1f66223ce1037518/drug-label-0008-of-0014.json.zip
Source manifest SHA-256
7e6b178df8f32cac9a78e0f5d09c588344509b04fe41effb1dde9102e2a45be6
Import run
20261013T011858Z
Imported at
2026-10-13 02:09:39
Harmonized routes table
Harmonized routes
TOPICAL

Warnings cross-check#

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Warnings sections page 1 of 1 · 1 matching rows.

warnings

WARNINGS Contains sodium metabisulfite, a sulfite that may cause allergic-type reactions, including anaphylactic symptoms and life-threatening or less severe asthmatic episodes in certain susceptible people. The overall prevalence of sulfite sensitivity in the general population is unknown and probably low. Sulfite sensitivity is seen more frequently in asthmatic than in non-asthmatic people. Since this product contains no sunscreen, an effective broad spectrum sun-blocking agent should be used and unnecessary solar exposure avoided, or protective clothing should be worn to cover bleached skin in order to prevent repigmentation from occurring. Hydroquinone may produce exogenous ochronosis, a gradual blue-black darkening of the skin. If this condition occurs, discontinue treatment and consult your physician. The majority of patients developing this condition are Black, but it may also occur in Caucasians and Hispanics.

Adverse reactions cross-check#

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Adverse reactions sections page 1 of 1 · 1 matching rows.

adverse reactions

ADVERSE REACTIONS The following adverse reactions have been reported: dryness and fissuring of paranasal and intraorbital areas, erythema, and stinging. Occasional hypersensitivity (localized contact dermatitis) may develop. If this occurs, the medication should be discontinued and the physician notified immediately.

Reported adverse events (FAERS/openFDA)#

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