endocrine and metabolic disorders
Porphyria Cutanea Tarda
Prevention of Porphyria Cutanea Tarda
Patients should avoid sun exposure, using hats and clothing and zinc or titanium oxide sunscreens. Typical sunscreens that block UV light are ineffective, but UVA-absorbing sunscreens, such as those containing dibenzylmethanes, may help somewhat. Alcohol ingestion should be avoided permanently, and smoking should be stopped. Estrogen supplementation, especially administered transdermally in low doses, can usually be resumed safely after a disease remission. 