Synergistic Effect of Combinations of Sulfamethoxazole, Trimethoprim, and Colistin Against Pseudomonas maltophilia and Pseudomonas cepacia

Abstract
Eighteen strains of Pseudomonas maltophilia and eight strains of P. cepacia were tested for susceptibility to sulfamethoxazole, trimethoprim, and colistin in different combinations. A synergistic effect was found against most of the strains.