The investigation of quindoxin photosensitivity

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Abstract
Quindoxin (quinoxaline di‐N‐oxide) is a photosensitizer capable of producing dermatitis. The study of a group of seven affected subjects has provided evidence of persistent light reaction and “photoallergy”, most probably to the parent substance and not to any photoproduct or contaminant. Clinical and photobiological similarities to the photo‐sensitivity dermatitis and actinic reticuloid syndrome were demonstrated.