Cyclic lactone antibacterial drugs, should be for macrolide antibacterial drugs which are erythromycin tablets, roxithromycin capsules, clarithromycin capsules and so on. 1. Erythromycin tablets: erythromycin tablets are macrolide antibiotics, belonging to anti-inflammatory drugs. It is mainly used for acute tonsillitis, acute pharyngitis, acute rhinitis and sinusitis caused by hemolytic streptococcus, pneumococcus and other sensitive bacteria. It can also be used for pneumonia caused by Mycoplasma pneumoniae and Mycoplasma pneumoniae. 2. Roxithromycin capsule: the main function of Roxithromycin capsule is antibacterial and anti-inflammatory. Roxithromycin capsule is the second generation of semi-synthetic macrolide antibiotics, mainly through the inhibition of bacterial protein synthesis to achieve antibacterial effect. 3. Clarithromycin capsule: it is systemic antibiotic. It is used for nasopharyngeal infections caused by Clarithromycin-sensitive bacteria, otitis media in the lower respiratory tract, Mycoplasma pneumoniae pneumonia, urethritis and cervicitis caused by Chlamydia trachomatis, and can also be used for Legionella infections or Helicobacter pylori infections. Cyclic lactone antibacterial drugs and acetylspiramycin, azithromycin, etc., the specific drug should be used under the guidance of a doctor, if any component of the drug is allergic or allergic to other macrolide antibiotics patients should be prohibited from using the drug in order to avoid adverse reactions.