Porphyria Cutanea Tarda Medication
- Author: Maureen B Poh-Fitzpatrick, MD; Chief Editor: Dirk M Elston, MD more...
Medication Summary
Medical therapy for porphyria cutanea tarda may be used alone or in combination with phlebotomy.
Antimalarials
Class Summary
These agents are believed to form complexes with porphyrin molecules within hepatocytes that are then discharged into the circulation and excreted by renal mechanisms. Increased urinary iron excretion has also followed their use. Reported experience in treating children with PCT with antimalarials is limited.
Chloroquine (Aralen)
Anti-inflammatory activity by suppressing lymphocyte transformation and may have photoprotective effect. Use in porphyria requires small doses once or twice a week. Larger doses may cause severe hepatic necrosis and death. Binds porphyrins and enhances excretion. Available as 250-mg tab and 500-mg scored tab; not available as a syr. Crush tab and mask bitter taste in jam, applesauce, or other soft food.
Hydroxychloroquine (Plaquenil)
Inhibits chemotaxis of eosinophils, inhibits locomotion of neutrophils, and impairs complement-dependent antigen-antibody reactions. Hydroxychloroquine sulfate 200 mg is equivalent to 155 mg hydroxychloroquine base and 250 mg chloroquine phosphate. Available as 200-mg tab; not available as a syr. Crush tab and mask bitter taste in jam, applesauce, or other soft food.
Bone Marrow Stimulants
Class Summary
In patients with anemia of chronic disease in whom venesections are relatively contraindicated, stimulation of erythropoiesis can mobilize tissue iron and may even enable low-volume phlebotomies to be performed at judicious intervals.
Epoetin alfa (Epogen, Procrit)
Stimulates division and differentiation of committed erythroid progenitor cells. Induces release of reticulocytes from bone marrow into blood stream.
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