Indications
HYDRO-Q ® is indicated for the gradual bleaching of hyperpigmented skin conditions such as chlosma, melasma, freckles, senile lentigines and areas of melanin hyperpigmentation.
Contraindications
HYDRO-Q ® is contraindicated in any patient that has a prior history of sensitivity or allergic reaction to hydroquinone or any of the other ingredients. The safety of topical hydroquinone use during pregnancy or in children (12 years and under) has not been established.
Warnings and precautions
CAUTION: Hydroquinone is a depigmenting agent that may produce unwanted cosmetic effects if not used as directed. The physician should be familiar with the contents of this insert before prescribing or dispensing this medication. Test for skin sensitivity before using HYDRO-Q ® by applying a small amount of the gel to an unbroken patch of skin and check within 24 hours. Minor redness is not a contraindication but where there is itching and vesicle formation or excessive inflammatory response further treatment is not advised.
Close patient supervision is recommended. Contact with the eyes should be avoided. If no lightening effect is noted after 2 months of treatment the use of HYDRO-Q ® should be discontinued. HYDRO-Q ® is formulated for the treatment of dyschromia and should not be used for the prevention of sunburn. Sunscreen use is an essential aspect of hydroquinone therapy because even minimal sunlight sustains melanocytic activity.
To prevent repigmentation during treatment and maintenance therapy, sun exposure on treated skin should be avoided by application of a broad spectrum sunscreen SPF 15 or greater) or by use of protective clothing Keep this and all medications out of reach of children. In case of accidental ingestion, contact a physician or a poison control center immediately. WARNING: Contains sodium metabisulfite, a sulfite that may cause serious allergic reactions (e.g., hives, itching, wheezing, anaphylaxis, severe asthma attack) in certain susceptible persons On rare occasions, a gradual blue-black darkening of the skin may occur, in which case, use of HYDRO-Q ® should be discontinued and a physician contacted immediately
Pregnancy and breastfeeding
A. Pregnancy Category C Animal reproduction studies have not been conducted with topical hydroquinone. It is also not known whether hydroquinone can cause fetal harm when used topically on a pregnant woman, or can affect reproductive capacity.
Adverse reactions
No systemic reactions have been reported. Occasional cutaneous hypersensitivity (localized contact dermatitis) may occur, in which case the medication should be discontinued and the physician notified immediately
Official product information
This product has no Drugs@FDA application number in our table. DailyMed holds the labels the manufacturers submit.
Prognia shows this product information for reference and learning. It is not treatment advice and can lag behind the official text. Always check the current product information and local protocols before prescribing.
At a glance
- Brand name
- Hydro-Q
- Active substance
- hydroquinone
- Pharmacologic class
- Melanin Synthesis Inhibitor
- Application
- LABEL-Hydro-Q
- NDC
- 30815-0040-1



