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trioxsalen

(Science: chemical) Pigmenting photosensitizing agent obtained from several plants, mainly psoralea corylifolia. It is administered either topically or orally in conjunction with ultraviolet light in the treatment of vitiligo.

Pharmacological action: photosensitizing agents.

Chemical name: 7H-Furo(3,2-g)(1)benzopyran-7-one, 2,5,9-trimethyl-