- History of a major adverse reaction to pentamidine defined by absolute neutropenia, < 750 polymorphonuclear leukocytes plus bands; thrombocytopenia, < 40000 platelets; creatinine rise, > 3.0 mg/dl; liver function abnormalities, SGOT or SGPT > 5 x normal; hypoglycemia, < 50 mg/dl; rash, exfoliative or mucositis; cough, unremitting cough or bronchospasm uncontrolled by bronchodilator preventing > 50 percent of dose delivered for > 2 days.