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October 1968

Chlorpromazine Photosensitivity: Phototoxic and Photoallergic Reactions

Author Affiliations

Madison, Wis

From the Contact and Photosensitivity Clinic, University of Wisconsin Medical School, Madison, Wis.

Arch Dermatol. 1968;98(4):354-363. doi:10.1001/archderm.1968.01610160028006

The clinical distinction between phototoxic and photoallergic contact dermatitis is difficult. Even a biopsy specimen from such a dermatitis rarely provides conclusive evidence. However, the histologic examination of biopsy specimens from photopatch tests in these cases is diagnostic, providing the tests are biopsied at the appropriate time.

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