<unk>  is a depigmenting agent that is FDA approved for the treatment of hyperpigmented skin conditions such as chloasma, melasma and freckles.   Common adverse reactions include hypersensitivity.
Hydroquinone, octinoxate and oxybenzone
Adapalene and Benzoyl peroxide
Sulfur trioxide
Isometheptene mucate, dichloralphenazone and acetaminophen
Thonzylamine hydrochloride and chlophedianol hydrochloride
Isometheptene, caffeine and acetaminophen
Silver sulfadiazine
Arsenic trioxide and bismuth subnitrate