Generic name: Methoxsalen 10mg in 1mL
Dosage form: lotion
Medically reviewed on April 9, 2018.
OXSORALEN Lotion is applied to a well-defined area of vitiligo by the physician and the area is then exposed to a suitable source of UVA. Initial exposure time should be conservative and not exceed that which is predicted to be one-half the minimal erythema dose. Treatment intervals should be regulated by the erythema response; generally once a week is recommended or less often depending on results. The hands and fingers of the person applying the medication should be protected by gloves or finger cots to avoid photosensitization and possible burns.
Pigmentation may begin after a few weeks but significant repigmentation may require 6 to 9 months of treatment. Periodic re-treatment may be necessary to retain all of the new pigment. Idiopathic vitiligo is reversible but not equally reversible in every patient. Treatment must be individualized. Repigmentation will vary in completeness, time of onset, and duration. Repigmentation occurs more rapidly in fleshy areas such as face, abdomen, and buttocks and less rapidly over less fleshy areas such as the dorsum of the hands or feet.
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