The disorder results from low levels of the enzyme responsible for the fifth step in heme production. Heme is a vital molecule for all of the body's organs. Billing oct for plaquenil Plaquenil and myasthenia gravis Porphyria cutanea tarda PCT is an iron-related disorder that responds to treatment by phlebotomy or low-dose hydroxychloroquine, but comparative data on these treatments are limited. The hypothesis is that hydroxychloroquine is noninferior to phlebotomy in terms of time to remission. Porphyria cutanea tarda PCT is the most common type of porphyria. An increase in porphyrins in the skin result in photosensitivity, ie, the skin is damaged by light. Hepatoerythropoietic Porphyria HEP is a deficiency of the enzyme uroporphyrinogen decarboxylase; it is the autosomal recessive form of familial Porphyria Cutanea Tarda f-PCT. The manifestations of HEP resemble Congenital Erythropoietic Porphyria CEP, with symptoms of skin blistering that usually begin in infancy. Hepatoerythropoietic porphyria has been described as a homozygous form of porphyria cutanea tarda, The disease is characterized by onycholysis and blistering of the skin in areas that receive higher levels of exposure to sunlight. It is a component of hemoglobin, the molecule that carries oxygen in the blood. Hydroxychloroquine porphyria cutanea tarda Hydroxychloroquine versus phlebotomy in the treatment of., Porphyria cutanea tarda DermNet NZ What eye exam is needed for plaquenilChloroquine powderHydroxychloroquine cause urinary infectionsChloroquine and pancreatic cancerChloroquine vs doxycycline Six patients with skin changes and urinary porphyrin excretion patterns characteristic for porphyria cutanea tarda were treated with hydroxychloroquine sulfate therapy. During treatment periods ranging from five to 13 months, cutaneous symptoms disappeared and urinary porphyrin excretion abnormalities were completely or almost completely reversed. Hydroxychloroquine treatment of porphyria cutanea tarda.. Hepatoerythropoietic Porphyria HEP - American Porphyria.. Plaquenil Disease Interactions -. Porphyria cutanea tarda commonly referred to as PCT is recognized as the most prevalent subtype of porphyritic diseases. The disease is characterized by onycholysis and blistering of the skin in areas that receive higher levels of exposure to sunlight. The primary cause of this disorder is a deficiency of uroporphyrinogen decarboxylase UROD, a cytosolic enzyme that is a step in the enzymatic pathway that leads to the synthesis of heme. Most types of porphyria are inherited. That means one or both of your parents passes a mutated gene to you that leads to the disease. One common type of cutaneous porphyria, known as porphyria cutanea tarda, is sometimes passed through genes but can also be what doctors call an "acquired disease.". Jul 11, 2017 Porphyria cutanea tarda PCT is a type of porphyria or blood disorder that affects the skin. PCT is one of the most common types of porphyria. It’s sometimes referred to colloquially as vampire disease. That’s because people with this condition often experience symptoms following exposure to sunlight.