<unk> (topical) is an antipsoriatic that is FDA approved for the {{{indicationType}}} of vitiligo. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include erythema, pain of skin, pruritus, nausea, dizziness, headache, and fatigue.
Methoxsalen 
Trioxsalen
Isothipendyl
Naloxegol
Mannosulfan
Perflubron
Cloethocarb
Dicyclomine