Levamisole, an anti-helminthic vet drug, is used as a colorless, odorless, adulterant to narcotics, cocaine, fentanyl, etc. Levamisole also causes ANCA+ Vasculitis (small to medium vessels), palpable purpura, agranulocytosis https://t.co/BKoDo2iemJ https://t.co/bSl0eYn0yO