Levofloxacin and ciprofloxacin are both antimicrobial drugs belonging to the quinolone class, and there is no saying which one is stronger, it is necessary to combine the patient’s system of infection and the results of drug sensitivity to judge. 1. Levofloxacin: Levofloxacin is often used clinically to treat pneumonia, tonsillitis, chronic bronchitis, prostatitis, acute pyelonephritis, urinary tract infections and other diseases. 2. Ciprofloxacin: Ciprofloxacin is commonly used in the treatment of urinary tract infection, bacterial prostatitis, acute bronchitis, cervicitis, infectious pneumonia, osteoarthritis, otitis media and other diseases. Levofloxacin is stronger than ciprofloxacin in the treatment of gram-positive bacteria, so it is preferred in the treatment of streptococcal pneumonia. Levofloxacin is excreted in urine as the main route of excretion, so the effect of levofloxacin is stronger than ciprofloxacin in treating urinary tract infections. If a patient has a drug sensitivity result that suggests greater sensitivity to one of the two drugs, it is recommended that the drug with the greater sensitivity be selected for use. It should be noted that both drugs, levofloxacin and ciprofloxacin, should not be used by patients with a history of allergy to quinolones, and special populations such as pregnant women and lactating women are advised to use them under the guidance of a doctor. Some patients may experience adverse reactions such as nausea, vomiting, dizziness and drowsiness after use. It is recommended that patients do not take the drug privately, so as not to cause harm to the body, if there is discomfort, should go to the hospital in a timely manner.