Inhaled antibiotics approved for use in patients with cystic fibrosis
| Aztreonam lysine | Effective against most Gram-negative bacteria including Pseudomonas; has activity against aminoglycoside-resistant Pseudomonas aeruginosa. |
| Colistin | Active only against certain Gram-negative aerobes and Gram-negative facultative anaerobes. Species that are susceptible to colistin include Citrobacter species, Escherichia coli, Haemophilus influenzae and P. aeruginosa. |
| Levofloxacin# | Broad spectrum of activity against Gram-positive and Gram-negative bacteria and atypical respiratory pathogens. It is active against both penicillin-susceptible and penicillin-resistant Streptococcus pneumoniae. |
| Tobramycin | Effective against Pseudomonas species, Klebsiella species, E. coli and both Staphylococcus aureus and Staphylococcus albus. |
#: inhaled levofloxacin is not approved in France.