The prescription antibiotic Zithromax can be used to make the treatment of various common infections, which can include bacterial infections and sexually transmitted diseases. By decreasing bacteria's ability to end up making protein and affecting peptide activity, the medicine may also help stop bacteria from continuing to call home and cause infection in the human body. Zithromax is supplied in either tablet form or if you are a liquid suspension it really is licensed for use in both young and old.