RT Journal Article SR Electronic T1 Levamisole-Adulterated Cocaine: A Case Series JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 531 OP 535 DO 10.3122/jabfm.2012.04.110287 VO 25 IS 4 A1 Morris, Gerald W. A1 Mason, Bryan C. A1 Harris Sprunger, Rachael A1 Hake Harris, Holly A1 White, Luke A. A1 Patterson, Dale A. YR 2012 UL http://www.jabfm.org/content/25/4/531.abstract AB The percentage of cocaine adulterated with levamisole is steadily increasing in the United States. In susceptible persons, this combination of drugs leads to a clinical syndrome that can include leukopenia and cutaneous manifestations. Many patients also demonstrate positive autoimmune markers. Biopsies of skin lesions often reveal a thrombotic pattern, leukocytoclastic vasculitis, or both. We report 2 cases of this clinical phenomenon, one of which was severe enough to require skin grafting. It is important for clinicians be aware of this emerging public health threat.