• Abnormalities of pigmentation are a well-known side effect of antimalarial therapy. Quinidine, an antiarrhythmic agent, is structurally related to the common antimalarials but, to our knowledge, has not been associated with pigmentary abnormalities. We report a case of localized blue-gray pigmentation, clinically and histologically identical to antimalarial-induced pigmentation, in a patient receiving quinidine therapy.
(Arch Dermatol 1986;122:1062-1064)
Mahler R, Sissons W, Watters K. Pigmentation Induced by Quinidine Therapy. Arch Dermatol. 1986;122(9):1062-1064. doi:10.1001/archderm.1986.01660210112031