title: Phototoxicity of Dictamnus alba.
abstract: Phytophotodermatitis from Dictamnus alba was observed in three patients. Thin-layer chromatography and spectrophotometry disclosed the occurrence of 5-methoxypsoralen and 8-methoxypsoralen in the plant extracts which was also demonstrated by their phototoxic activity in vitro.
mesh_terms: D003877:Dermatitis, Contact / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D006801:Humans; D019684:Magnoliopsida; D008730:Methoxsalen / Q000009:adverse effects*; D008875:Middle Aged; D010787:Photosensitivity Disorders / Q000209:etiology*
chemical_list: D008730:Methoxsalen