性能描述

Application
Levofloxacin is a broad-spectrum antibiotic used in pharmacokinetic 1, antibiotic resistance, and resistance prevention studies.

Biochem/physiol Actions
Levofloxacin is active against Gram-positive and Gram-negative bacteria. It inhibits DNA gyrase (type II topoisomerase) and topoisomerase IV, 4 thereby inhibiting cell division.

溶解性：微溶于水、丙酮、乙醇、甲醇，极易溶于乙酸中。

具有广谱抗菌作用，抗菌作用强，对多数肠杆菌科细菌，如大肠埃希菌、克雷伯菌属、变形杆菌属、沙门菌属、志贺菌属和流感嗜血杆菌、嗜肺军团菌、淋病奈瑟菌等革兰阴性菌有较强的抗菌活性。对金黄色葡萄球菌、肺炎链球菌、化脓性链球菌等革兰阳性菌和肺炎支原体、肺炎衣原体也有抗菌作用，但对厌氧菌和肠球菌的作用较差。