The prescription antibiotic Zithromax is used for your personal treatment of various common infections, which can include bacterial infections and venereal disease. By decreasing bacteria's ability that helps make protein and affecting peptide activity, the medicine can be useful stop bacteria from continuing to live on and cause infection elsewhere in the body. Zithromax can be found in either tablet form or if you become a liquid suspension as well as licensed to get used in both children and adults.