[Pentamidine inhalation for Pneumocystis carinii pneumonia in AIDS]

Pneumocystis carinii pneumonia (PCP) is the major cause of death in AIDS. The use of standard drugs for PCP is associated with a remarkably high rate of adverse reactions in AIDS patients. We treated a 35-year-old homosexual with a first episode of PCP with intravenous trimethoprim, 20 mg/kg, and sulfamethoxazole, 100 mg/kg and later with pentamidine injections. However medication had to be stopped because of severe side effects. A new method of therapy using aerosolized pentamidine (300 mg per inhalation, daily) was then applied successfully. The patient recovered and has been having prophylactic inhalations and getting azothymidine for the past 8 months. In studies on relatively small numbers of patients this treatment has been reported to give good results with only minor side effects. However, further data are needed, especially on the optimal characteristics of the generated aerosol and the best delivery system.