Azithromycin 500 mg is a macrolide antibiotic used to treat a wide variety of bacterial infections, including:
Respiratory infections: bronchitis, pneumonia, sinusitis
Sexually transmitted infections (STIs)
It is also used to prevent some infections, such as heart infection iinfectionshaving dental or other procedures.
Azithromycin is typically taken once a day for 3 to 5 days, depending on the type of infection.