Comparative inhibitory activity of BL-S640 and two other cephalosporins.

Abstract
In vitro antibacterial activity of BL-S640 was compared to that of cephalothin and cephalexin against Gram-negative and Gram-positive bacteria isolated from clinical specimens. BL-S640 demonstrated the best activity on nearly all microbial species studied, except for Haemophilus influenzae and Diplococcus pneumoniae against which cephalothin was slightly more active.