Single Day or Single Dose Treatment of Urinary Tract Infection with Co-trimoxazole

Abstract
Forty-eight women with urinary tract infection due to co-trimoxazole sensitive organisms [bacteria] were randomly allocated to receive 2 tablets (0.96 g) of co-trimoxazole twice a day for 1 day, 4 tablets (1.92 g) of co-trimoxazole as a single dose or 2 tablets of co-trimoxazole twice a day for 7 days. The infection cure rate was comparable in each group being 82, 87 and 81%, respectively. The patients who received the single dose had a high incidence of minor side effects. One-day treatment appears to be the treatment mode of choice. Failure to respond to single dose or single day treatment may indicate those patients requiring investigation of their urinary tract.