Abstract
39 patients were treated with carotinoids (beta-carotene alone or combined with canthaxanthine) with an oral dose of 50-150 mg/d, some of them for a period of several years. 23 of these were patients with porphyria (erythropoietic protoporphyria [EPP] 20, congenital erythropoietic porphyria 2, erythropoietic coproporphyria 1); 16 patients were suffering from various photodermatoses (solar urticaria 6, actinic reticuloid 5, UV-A intolerance 1, unclassified photodermatoses 4). Tolerance of the carotinoids was very good; no side effects were seen except for a yellow discoloration of the skin. In 19 of 20 EPP patients the result of the treatment was good, whereas no improvement was seen in the other kinds of porphyria. Of the 16 cases of photodermatoses not caused by porphyrinopathy, 6 responded to the therapy (solar urticaria 2, actinic reticuloid 2, UV-A intolerance 1, unclassified photodermatosis 1). Some cases showed great improvement as a result of the treatment.
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