Azithromycin is a broad-spectrum macrolide antibiotic used to treat various bacterial infections. It inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit, thereby halting bacterial growth. Azithromycin is known for its extended half-life and convenient once-daily dosing regimen, making it a popular choice for treating respiratory tract infections, skin and soft tissue infections, sexually transmitted diseases, and other bacterial illnesses.