Ciprofloxacin tablets and levofloxacin tablets do not exist which one is better, both belong to the quinolone class of antibacterial drugs, the specific should be based on the treatment of disease decision. 1. Ciprofloxacin tablets: mainly for gram-positive bacteria, gram-negative bacteria, chlamydia, mycoplasma, etc., can be used for sensitive bacteria infections caused by the respiratory system, genitourinary system, digestive system, as well as bone and joint infections. 2. Levofloxacin tablets: mainly for Escherichia coli, Klebsiella, Salmonella, Proteus, has a strong effect on some staphylococcus streptococcus, Haemophilus influenzae chlamydiae also have a certain effect, the clinic is mainly used in the respiratory system, the urinary system, the digestive system, skin infections and so on. Adverse reactions: abdominal discomfort, diarrhea, nausea and vomiting, dizziness, drowsiness, rash, skin itching. Contraindications: prohibited for patients who are allergic to quinolones. Body disease need to go to the hospital for examination first, the drug should be used under the guidance of a professional doctor, to avoid their own abuse of drugs.