ABSTRACT
INTRODUCTION: Adulterants are compounds added to street drugs to increase profits for the seller. Levamisole, a veterinary antihelminthic agent, has become the most common adulterant of cocaine. The prevalence of levamisole in samples of cocaine is increasing. Levamisole can lead to neutropenia and to a dramatic vasculopathy and even vasculitis of small and medium-size blood vessels. CASE REPORT: We here reported the first French case of levamisole related toxicity, due to cocaine use in a 50-year-old man, revealed by fever and agranulocytosis, high titters of antineutrophil cytoplasmic antibodies (ANCA), anticoagulant and positive Coombs tests. Outcome was slowly favorable with exposition withdrawal. CONCLUSION: Clinicians should be aware that agranulocytosis or vasculitis or vasculopathy could be related to levamisole toxicity in individuals who use cocaine.
