15 ml Azithromycin Syrup is antibiotic formulation which is prescribed for treatment of strep throat, travelerâs diarrhea, and middle ear infection. Active compound present in this syrup is known to have chemical formula C38H72N2O12. It works by interfering with bacterial protein synthesis which results in their death. This compound binds to 50S subunit of ribosome and alters translation in order to exert its curative effects. It gets metabolized in liver with bioavailability of about 38% and elimination half life of 11 to 14 hours. 15 ml Azithromycin Syrup belongs to macrolide class of drugs and is considered highly effective in nature with no side effects if consumed under prescription.