Alias Azeyromycin, Sumet, Erythromycin azide, Vihon, Azithromycin, Azithromycin. Foreign name: Aizthromycin. is a semi-synthetic macrolide antibiotic. The antimicrobial spectrum is similar to that of erythromycin, and the effect is stronger. It is four times stronger than erythromycin for influenza, hemophilus and streptococcus, and has a certain effect on most gram-negative bacteria, squamous bacillus and Staphylococcus aureus infections, and also has a good killing effect on toxoplasmosis, syphilis and spirochetes. It can treat respiratory, urinary tract, skin and soft tissue infections in acute diseases.