Pharmacological effects of gatifloxacin

Both in vitro experiments and clinical use results indicate that most strains of the following microorganisms have antibacterial activity:
1. Gram positive bacteria: Staphylococcus aureus (limited to strains sensitive to methicillin), Streptococcus pneumoniae (strains sensitive to penicillin).
2. Gram negative bacteria: Escherichia coli, Haemophilus influenzae and parainfluenza, Klebsiella pneumoniae, Moraxella catarrhalis, Neisseria gonorrhoeae, and Proteus mirabilis.
3. Other microorganisms: Chlamydia pneumoniae, Legionella pneumophila, and Mycoplasma pneumoniae.