Tretinoin
Diaminodiphenyl sulfone
Fluorouracil
Betamethasone and Fusidic Acid
Hydroquinone
Isotretinoin
Tazarotene
Mometasone
Clobetasol
Permethrin
Gresiofulvin
Adapalene
Erythromycin
Cyclosporine
Podophyllum resin