Pivmecillinam plus pivampicillin in complicated urinary tract infection. Double-blind comparison of the combination pivmecillinam/pivampicillin and pivmecillinam alone in patients with urinary tract infection.

Twenty-six surgical-urological patients with severe underlying diseases of the urinary tract and an acute urinary tract infection received a 10-day treatment with either pivmecillinam, 400 mg three times daily (twelve patients), or the fixed dose combination of pivmecillinam/pivampicillin (pivmecillinam 200 mg plus pivampicillin 250 mg) three times daily (fourteen patients). Eleven of the fourteen patients given combined therapy were cured bacteriologically, compared to only four out of twelve patients taking pivmecillinam alone. Clinical success was achieved in eleven out of fourteen patients who received combination therapy and in seven out of twelve subjects given pivmecillinam. Mild gastro-intestinal discomfort was recorded in a few patients in both treatment groups. The results suggest that the combination of pivmecillinam and pivampicillin is a promising alternative in patients with complicated urinary tract infections.