[Clinical evaluation of sisomicin in the treatment of complicated chronic urinary tract infections administered by intravenous infusion].

The pharmacokinetics of sisomicin (SISO) were determined in 3 patients including a case with mild renal dysfunction after intravenous infusion over 1 hour of a single dose of 50 mg. The peak serum concentration was ranged from 3.3 to 3.9 micrograms/ml with about 2 hours of half-life in patients with normal renal function and 4.5 hours in a patient with renal impaired function. This result suggested that dosage regimen should be adjusted in patients with renal impaired function. Clinical response was evaluated in treatment of 16 cases with chronic complicated UTI. SISO was administered intravenously over 1 or 1.5 hours at a daily dose of 100 or 150 mg. An overall excellent or moderate effect was seen in 68.8% of treatment cases with the evaluation by the UTI committee's criteria. As for clinical laboratory abnormal values, a slight but reversible increase of BUN was observed in 1 case. In conclusion, intravenous administration of SISO appeared to be effective and useful method for treatment of complicated UTI.