Among the most common broad-spectrum antibiotics are ciprofloxacin and levofloxacin-a class of drugs known as fluoroquinolones-and azithromycin, which is sold by one drug maker under the brand name Zithromax, or Z-Pak. 广谱抗生素中,最常见的是环丙沙星和左氧氟沙星(被称为氟喳诺酮类药物)以及阿奇霉素(某制药公司以希舒美(Zithromax)品牌销售)。