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To the Editor.—
Had Takeshi Horio's patient with the chlorpromazine photoallergy (Arch Derm 111:1469, 1975) ever taken chlorpromazine? If so, for what length of time and in what dose? And at what point along the way did the allergic reaction first manifest itself? Was the activity of the disease related at all either to the times or dates of ingestion of medication, or to exposure to sunlight?Allergy that is completely divorced from the history of the disease is a somewhat sterile subject. I am surprised that your consultant or consultants did not ask for some information about the background of this illness.
Harry L. Arnold. Chlorpromazine Photoallergy. Arch Dermatol. 1976;112(11):1610. doi:10.1001/archderm.1976.01630350076018