For pneumonia caused by lung infections, levofloxacin can be chosen to treat the pneumonia, targeting the pneumonia caused mainly by the bacteria that levofloxacin can cover and kill. Levofloxacin belongs to the quinolone class of antibiotics, antibacterial range is very wide, can be used for Klebsiella, Streptococcus pneumoniae, Streptococcus influenzae and Pseudomonas aeruginosa, but also includes mycoplasma, chlamydia and other pathogens caused by pneumonia with good results. Some patients in the use of levofloxacin for the treatment of pneumonia will have adverse reactions, such as nausea, vomiting, or even abdominal pain, diarrhea, dizziness, dizziness and other symptoms, because levofloxacin has a certain effect on the development of the bones, for the use of the people under 18 years of age is prohibited.