This product is suitable for pharyngitis and tonsillitis caused by Streptococcus pyogenes, sensitive bacteria caused by sinusitis, otitis media, acute bronchitis, chronic bronchitis acute attack, pneumonia caused by mycoplasma pneumoniae or chlamydia pneumoniae; Genitourinary infections caused by chlamydia trachomatis (urethritis and cervicitis); Infection of skin, soft tissues and other parts of the body caused by sensitive bacteria; It is also used for non-specific and gonococcal genital infections. An infection caused by Legionella bacteria. Pediatric infection. Roxithromycin is characterized by acid resistance and good oral absorption. T1/2 is 12Chemicalbook ~ 14 hours, which is more than 6 times higher than erythromycin. Widely distributed in the body, in the upper and lower respiratory tract, reproductive tract and skin can reach a high concentration and maintain for a long time. Most of it is metabolized in the body. Clinical application evaluation of roxithromycin: The clinical and bacteriological cure rate of chlamydia urethritis and cervicitis is 93% ~ 97%, the effect of genital infection is similar to doxycycline, the cure rate of skin infection is more than 90%, the effective rate of respiratory infection is 83% and 50%, the effective rate of pneumonia and dental infection is 79% and 85%.