[Work-related contact and photocontact allergy in a farmer caused by chlorpromazine].

A farmer specialized in pig-breeding showed acute dermatitis of his hands, forearms and face after using chloropromazine for the sedation of pigs. Epicutaneous and photo-patch tests showed positive reactions to chloropromazine. Further tests with other occupational materials were negative. This observation points out that in cases of contact dermatitis in farmers, besides antibiotics, vitamins and other feeding additives, sedatives of the phenothiazin-type should not be forgotten.