A case of porphyria cutanea tarda is presented in which clinical and biochemical remission were associated with the administration of 0.5 gm of chloroquine twice weekly over a seven-month period without adverse effects.
Saltzer EI, Redeker AG, Wilson JW. Porphyria Cutanea TardaRemission Following Chloroquine Administration Without Adverse Effects. Arch Dermatol. 1968;98(5):496-498. doi:10.1001/archderm.1968.01610170056010