the bacteriostatic and bactericidal activities of five macrolides ( roxithromycin , erythromycin , troleandomycin , josamycin and spiramycin ) were tested against 284 bacterial strains belonging to various species of gram positive ( staphylococci , streptococci , pneumococci , listeria sp , corynebacterium sp , bacillus sp ) and gram negative bacteria ( neisseria sp , h. influenzae , p. multocida ) .
C0035891
roxithromycin
C0014806
erythromycin