[Clinical and fundamental studies on ceftriaxone (CTRX) against urinary tract infections]

Clinical efficacy of ceftriaxone (CTRX) against complicated urinary tract infections in 20 patients was examined, and the serum CTRX level was also measured in the patients with chronic renal failure (CRF). CTRX was administered at a dose of 1.0 g once a day for 5 to 10 days. The overall clinical efficacy was rated excellent in 4 cases (20%), moderate in 13 cases (65%) and poor in 3 cases (15%) with a total efficacy of 85%. Seventeen out of 27 strains (62.8%) isolated were eradicated after CTRX administration. In the patients with CRF, serum levels were very high and showed a plateau 4 hours after the injection. Furthermore, CTRX may not be removed by usual hemodialysis treatment. There were no severe side effects due to CTRX in these patients.