Zithromax (Azithromycin) is in a group of drugs called macrolide antibiotics, What is the most important information I should know about azithromycin. Azithromycin is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases. Zithromax Price - Lowest Zithromax Prices This medication is not expected to be harmful to an unborn baby Tell your doctor if you are pregnant or plan to become pregnant during treatment. If you have any of these conditions, you may not be able to use azithromycin, or you may need a dosage adjustment or special tests during treatment Azithromycin may also be used for purposes other than those listed in this medication guide, zithromax price.