neutropenia, agranulocytosis, leukopenia , and pancytopenia . Hypersensitivity side effects have included anaphylactoid reactions, anaphylactoid purpura , anaphylaxis (including shock and fatalities), angioneurotic edema , autoimmune vasculitis , drug fever , eosinophilic pneumonitis , erythema multiforme, fixed drug eruptions , hepatitis , lupus-like syndrome , myocarditis , pericarditis , polyarthralgia ,