A large number of drugs have been associated with<unk> , including antiepileptics (such as carbamazepine and valproate), antithyroid drugs (carbimazole, thiamazole, and propylthiouracil), antibiotics (penicillin, chloramphenicol and trimethoprim/sulfamethoxazole), H2 blockers (cimetidine, famotidine, nizatidine, ranitidine), ACE inhibitors (benazepril), cytotoxic drugs, gold salts, analgesics (aminophenazone, indomethacin, naproxen, phenylbutazone, metamizole), mebendazole, allopurinol, the antidepressants mianserin and mirtazapine, and some antipsychotics (the atypical antipsychotic clozapine in particular). Clozapine users in the United States, Australia, Canada, and the UK must be nationally registered for monitoring of low white blood cell count (WBC) and absolute neutrophil counts (ANC). Although the reaction is generally idiosyncratic rather than proportional, experts recommend that patients using these drugs be told about the symptoms of<unk> -related infection, such as a sore throat and a fever. The Centers for Disease Control and Prevention traced outbreaks of<unk>  among cocaine users, in the US and Canada between March 2008 and November 2009, to the presence of levamisole in the drug supply. The Drug Enforcement Administration reported that, as of February 2010, 71% of seized cocaine lots coming into the US contained levamisole as a cutting agent. Levamisole is an antihelminthic (i.e. deworming) drug used in animals. The reason for adding levamisole to cocaine is unknown, although it can be due to their similar melting points and solubilities.
Agranulocytosis
Granulocytosis
Febrile neutropenia
Leukopenia
Lycopenemia
Cytopenia
Cyclic neutropenia
Pythiosis