Azithromycin is an azalide , a subclass of macrolide antibiotics .

Azithromycin (brand names APO-Azithromycin in Canada; Zithromax in Finland, Italy, The United Kingdom, The United States, Australia, Portugal, South Africa, Canada, Thailand and Belgium; Zithromac in Japan; Vinzam / Zitromax in Spain; Zmax ; Sumamed in Croatia; ATM , Aztrin , Zitrocin , Azibiot , Azifine , AziCip , Azi Sandoz , Aziswift in India) is one of the world's best-selling [ citation needed ] antibiotics, and is derived from erythromycin ; however, it differs chemically from erythromycin in that a methyl -substituted nitrogen atom is incorporated into the lactone ring, thus making the lactone ring 15-membered. more

Azithromycin is an azalide , a subclass of macrolide antibiotics .

Azithromycin (brand names APO-Azithromycin in Canada; Zithromax in Finland, Italy, The United Kingdom, The United States, Australia, Portugal, South Africa, Canada, Thailand and Belgium; Zithromac in Japan; Vinzam / Zitromax in Spain; Zmax ; Sumamed in Croatia; ATM , Aztrin , Zitrocin , Azibiot , Azifine , AziCip , Azi Sandoz , Aziswift in India) is one of the world's best-selling [ citation needed ] antibiotics, and is derived from erythromycin ; however, it differs chemically from erythromycin in that a methyl -substituted nitrogen atom is incorporated into the lactone ring, thus making the lactone ring 15-membered. Azithromycin is used to treat certain bacterial infections, most often those causing middle ear infections , tonsillitis , throat infections, laryngitis , bronchitis , pneumonia and sinusitis . It is also effective against certain sexually transmitted infectious diseases, such as non-gonococcal urethritis and cervicitis. Recent studies have also indicated it to be effective against late-onset asthma , but these findings are controversial and not widely accepted. [ 1 ] [ 2 ] less