Azithromycin 500mg is an antibiotic medication used to treat certain bacterial infections such as bronchitis, pneumonia, sexually transmitted diseases (STDs), infections of the ears, lungs, sinuses, skin, throat, and reproductive organs, and to treat or prevent disseminated Mycobacterium avium complex (MAC)
. It is in a class of medications called macrolide antibiotics and works by stopping the growth of bacteria. Azithromycin should only be used to treat or prevent infections that are proven or strongly suspected to be caused by bacteria, and not for colds, flu, or other viral infections
