Psoralen and UVA light therapy (PUVA) for psoriasis

 
Generic Name Brand Name
methoxsalen

Psoralen medicines are available as pills, lotions, or bath salts. A psoralen medicine is taken 1½ to 2 hours before you are exposed to ultraviolet A (UVA) light (PUVA). This treatment is repeated 2 to 3 times a week. The dose of medicine is not increased, but the amount of light may be increased.

Goggles should be worn to protect eyes during UVA treatment. Special UVA-blocking glasses should be worn for 24 hours after PUVA therapy. Men should protect their genitals from UVA exposure during treatments.

Psoralens may also be used in a form that can be put into your bath water. This form causes greater sensitivity to UVA than the oral medicine, so lower doses of UVA can be used.

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