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Toxic Effects of Levamisole in a Cocaine User | New England Journal of Medicine
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Toxic Effects of Levamisole in a Cocaine User

Authors: Trevor T. Muirhead, M.D., and Melody J. Eide, M.D., M.P.H.Author Info & Affiliations
Published June 16, 2011
N Engl J Med 2011;364: e52
DOI: 10.1056/NEJMicm1008722

Abstract

A 54-year-old woman presented with a 2-day history of a painful, enlarging rash over her face (Panel A), ears (Panel B), breasts, and extremities. Laboratory studies revealed neutropenia (neutrophil count, 1070 per cubic millimeter) and lymphopenia (lymphocyte count, 680 per cubic millimeter); the detection of antineutrophil cytoplasmic antibodies (ANCA) by immunofluorescence testing showed the perinuclear pattern (p-ANCA) and the cytoplasmic pattern (c-ANCA), and an enzyme-linked immunosorbent assay revealed a proteinase-3 antibody titer of 1:320. Toxicologic screening of the urine was positive for cocaine and opiates. The urine levamisole level 2 days after admission was positive at 920 ng per milliliter. . . .