Levofloxacin Hydrochloride Tablets are usually taken for 3 to 5 days to have an effect, and its therapeutic effect varies due to the different physical qualities of each person. Levofloxacin Hydrochloride Tablet is a quinolone antimicrobial drug, which can treat a variety of infections caused by sensitive bacteria. The therapeutic effect of this drug is affected by various factors, such as dietary habits, living environment, personal constitution and the absorption ability of the drug, etc. However, it is generally effective to take it for 3 to 5 days, and the clinical symptoms can be relieved. The use of this drug is prohibited for those who are allergic to levofloxacin hydrochloride tablets, patients under 18 years of age, pregnant and lactating women. The main adverse effects of this drug include nausea, vomiting, headache and dizziness. Before using Levofloxacin Hydrochloride Tablets, you should consult a professional doctor.