Levofloxacin can treat cholecystitis caused by or combined with bacterial infection. Levofloxacin belongs to the quinolone class of antibiotics and is mainly used for cholecystitis, pyelonephritis, and community-acquired pneumonia caused by bacteria such as Escherichia coli, Aspergillus spp, Klebsiella spp, and Haemophilus influenzae. Levofloxacin is usually administered topically, orally, or by injection. Oral administration is usually used for patients with mild to moderate cholecystitis, while injection is used for severe infections. Adverse effects of levofloxacin include fever, diarrhea, tendonitis, peripheral neuropathy, central neuropathy, etc. It is contraindicated in people who are allergic to the drug, contraindicated in pregnant and lactating women, and contraindicated in patients younger than 18 years old. You need to drink a lot of water while taking the drug to prevent urinary tract stones. The drug needs to be used strictly under the guidance of a doctor, not blindly self-medication.