In general, less activity against pseudomonas than ciprofloxacin, but has more activity against MSSA
Compared to levofloxacin,<unk>  has greater in vitro activity against strep pneumoniae, staph aureus and some enterococcus strains 
S susceptible/sensitive (usually)
I intermediate (variably susceptible/resistant)
R resistant (or not effective clinically)
S+ synergistic with cell wall antibiotics
U sensitive for UTI only (non systemic infection)
X1 no data
X2 active in vitro, but not used clinically
X3 active in vitro, but not clinically effective for Group A strep pharyngitis or infections due to E. faecalis
X4 active in vitro, but not clinically effective for strep pneumonia
Moxifloxacin
Telithromycin
Azithromycin
Amikacin
Gemifloxacin
Levofloxacin
Meropenem
Minocycline