Zithromax is a well-known antibiotic that contains the active ingredient azithromycin. It is formulated in various dosages including 250 mg, 500 mg, 600 mg, and 1000 mg tablets. Zithromax is primarily used to treat a wide array of bacterial infections, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases. It is also marketed under alternate brand names like Azee, Azithral, and Aziwok, providing effective treatment options across diverse medical needs.