Treatment of uncomplicated urinary tract infections with a single dose of co-trimoxazole.

Sixty-four women with an uncomplicated urinary tract infection were randomly allocated to receive treatment with either an 0.96 g, 1.92 g or 2.88 g single oral dose of co-trimoxazole or a conventional five-day course of co-trimoxazole. The success of each group was comparable although it is suggested that a single dose should be at least 1.92 g (four tablets Septrin or Bactrim). This study confirmed previous work that single dose therapy was effective and well tolerated, preferred by the patients and side effects were minimal. This approach to treatment should be strongly encouraged.