title: Agranulocytosis, procainamide, and phenytoin.
mesh_terms: D000368:Aged; D000380:Agranulocytosis / Q000139:chemically induced*; D006801:Humans; D008297:Male; D010672:Phenytoin / Q000009:adverse effects*; D011342:Procainamide / Q000009:adverse effects*
chemical_list: D010672:Phenytoin; D011342:Procainamide