Roxithromycin capsules belong to macrolide class of antimicrobials, which is a derivative of erythromycin and has obvious antibacterial effect on Gram(+) bacteria. It is commonly used for the treatment of acute pharyngitis, acute otitis media, acute sinusitis, acute tonsillitis and other ENT diseases caused by sensitive bacteria. It can also be applied to urinary system diseases and skin soft tissue infections caused by the supposed bacteria, and can also be used for pneumonia caused by Mycoplasma pneumoniae and Chlamydia infection, usually adults 1 capsule once, 2 times a day.