The prescription antibiotic Zithromax can be used for any of the treatment of various common infections, which can include bacterial infections and venereal disease. By decreasing bacteria's ability to bring about protein and affecting peptide activity, the medicine can help to stop bacteria from continuing to live a life and cause infection within the body. Zithromax will come in either tablet form or in to a liquid suspension as well as being licensed to be utilized in both young and old.