There are more drugs in the Farsin group, mainly including Moxifloxacin, Levofloxacin, Ciprofloxacin, Ofloxacin, Norfloxacin and Lomefloxacin. Farsin drugs belong to a quinolone antibiotic, which is a widely used anti-inflammatory and antiseptic drug. Farsin drugs are mostly used for digestive system infections and urinary system, respiratory system infections, etc. Especially levofloxacin is effective in the treatment of urinary system infections and Mycoplasma pneumoniae infections, and ciprofloxacin has a significant effect on Pseudomonas aeruginosa. As a broad-spectrum antimicrobial drugs, Farsin drugs have good bactericidal effect on many kinds of pathogenic bacteria, and strong safety and high efficacy. For example, they have antibacterial activity against both Gram-negative and Gram-positive bacteria, especially against Gram-negative bacteria, such as Klebsiella pneumoniae, Escherichia coli, Enterobacter aerogenes. At the same time, salvars also have antibacterial activity against atypical pathogens such as Mycoplasma and Chlamydia. Side effects of saxifragilants are common in allergic reactions such as rash and itching, gastrointestinal reactions such as nausea, vomiting and abdominal discomfort, and neuropsychiatric symptoms such as delirium. It is recommended that patients should reasonably apply salacin antibiotics under the guidance of professional physicians and not use them without authorization to avoid causing adverse reactions.