In Vitro Evaluation of N -Formimidoyl Thienamycin (MK0787) Combined with Amikacin Against Gram-Negative Bacilli and Staphylococcus aureus

Abstract
The in vitro synergistic activity of N -formimidoyl thienamycin and amikacin was determined against gentamicin-resistant enterobacteriaceae, Pseudomonas aeruginosa , and Staphylococcus aureus. N -Formimidoyl thienamycin showed synergism with amikacin against 19 of the gentamicin-resistant strains, 14 of the 49 strains of S. aureus , and only 1 strain of the 46 P. aeruginosa isolates.