8-Mop works by enhancing the body's sensitivity to ultraviolet light A (UVA).
8-Mop is used in combination with UVA light therapy to treat severe psoriasis.
8-Mop can cause harmful effects on your vision and on your skin (premature aging or skin cancer).  8-Mop is used only for severe psoriasis that has not improved with other treatments. You must remain under the care of a doctor while taking this medicine.
8-Mop may also be used for purposes not listed in this medication guide.
