Oral methoxsalen is a pill that patients take two to four hours before UV light treatment for psoriasis, a severe skin condition. This medication is taken with food and helps boost the effectiveness of UV treatments against this disease. The medication may be taken two to four times per week, depending on how frequently you have treatments.
This medication increases your risk of getting skin cancer. It should only be prescribed by doctors who are familiar with skin cancer symptoms and treatments so that patients get the best care possible if they develop cancer as a result of taking this medication.
Patients who take this medication also may develop cataracts as a result of the interaction between the medication and the UV light treatments. Vision difficulties should be reported to your doctor as soon as possible so that cataracts can be treated before they get too large.