Referência de medicamentos
Hydroquinone
Hydroquinone is a medicine in the class miscellaneous. It is used for melasma.
- Classe do medicamento: Miscellaneous
- Indicado para: melasma
Última atualização Fontes: US FDA label
Para profissionais de saúde — apenas referência. Esta página é um resumo breve, não é aconselhamento médico nem substitui a bula oficial ou o julgamento clínico. Verifique sempre antes de prescrever ou dispensar.
O conteúdo clínico desta página está disponível apenas em inglês.
Pontos-chave
- Classe do medicamento
- Miscellaneous
- Formas farmacêuticas comuns
- creme, solução, gel
- Concentrações comuns
- 40 mg/g, 4%, 2%
- Nomes comerciais
- 16
- Países e mercados
- 3
Para que é usado
Como funciona
Topical hydroquinone produces reversible depigmentation of the skin by inhibiting the enzymatic oxidation of tyrosine to dopa and suppressing other melanocyte metabolic processes.
Dose habitual em adultos (resumo da bula)
Hyperpigmented skin conditions (chloasma, melasma, freckles, senile lentigines): apply to affected areas topically twice daily, morning and before bedtime, or as directed by a physician; discontinue if no lightening after two months
Gravidez e amamentação
- Gravidez
- Unknown Topical skin lightener; unlike most skin products, a relatively high share of applied hydroquinone is absorbed. No animal studies and very limited human data (US label: use only if clearly needed). Skin lightening can wait: avoid in pregnancy, as melasma often fades after delivery.
- Amamentação
- Unknown Not studied in breastfeeding. LactMed: not contraindicated, but some experts advise against long-term use. If used, keep the infant's skin and mouth away from treated areas.
Efeitos adversos relatados
- Localized contact dermatitis (cutaneous hypersensitivity)
- Blue-black skin darkening (rare)
Contraindicações
- Prior history of sensitivity or allergic reaction to hydroquinone or any of the other ingredients.
Quem deve ter cuidado
- Depigmenting agent that may produce unwanted cosmetic effects if not used as directed.
- Test skin sensitivity first by applying a small amount to an unbroken skin patch and checking within 24 hours; stop if itching, vesicle formation or excessive inflammation occurs.
- Avoid contact with the eyes.
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Perguntas frequentes
What is Hydroquinone used for?
Hydroquinone is a medicine in the class miscellaneous. It is used for Melasma.
What side effects have been reported with Hydroquinone?
Localized contact dermatitis (cutaneous hypersensitivity), Blue-black skin darkening (rare).
Can Hydroquinone be taken in pregnancy or while breastfeeding?
Pregnancy: Unknown. Topical skin lightener; unlike most skin products, a relatively high share of applied hydroquinone is absorbed. No animal studies and very limited human data (US label: use only if clearly needed). Skin lightening can wait: avoid in pregnancy, as melasma often fades after delivery. Breastfeeding: Unknown. Not studied in breastfeeding. LactMed: not contraindicated, but some experts advise against long-term use. If used, keep the infant's skin and mouth away from treated areas.
What does Hydroquinone interact with?
MediHelp does not list a checked interaction for Hydroquinone yet. Always tell your pharmacist about every medicine you take.
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