Zithromax Z-pak (Azithromycin) medical uses, azithromycin for Streptococcal pharyngitis (strep throat), Urinary Tract Infections. Establishes the medication azithromycin (Zithromax, Zithromax Tri-Pak, Zithromax Z-Pak, Zmax), a drug that is effective against susceptible bacteria causing infections, and certain sexually transmitted infectious diseases. Read more about the prescription drug azithromycin (Zithromax, Zithromax Tri-Pak, Zithromax Z-Pak, Zmax). Azithromycin is used to treat certain bacterial infections (including sinusitis, pneumonia). It is a macrolide-type antibiotic. It works by stopping the growth of bacteria. Recommended Antimicrobial Agents for the Treatment and Postexposure Prophylaxis of Pertussis 2005 CDC Guidelines. Prepared by Tejpratap Tiwari, M.D. Medical uses. Azithromycin is used to treat many different infections, including: Prevention and treatment of acute bacterial exacerbations of chronic obstructive pulmonary disease due to H. influenzae, M. catarrhalis, or S. pneumoniae. Azithromycin (Zithromax) is used for treating a variety of bacterial infections, such as cat-scratch disease, ear infections and throat or tonsil infections. Azithromycin comes as a tablet, an extended-release (long-acting) suspension (liquid), and a suspension (liquid) to take by mouth. The tablets and suspension (Zithromax) are usually taken with or without food once a day for 1–5 days. Film-coated tablet. Azithromycin 250 mg Film-coated Tablets: white to off-white, elongated, unmarked on its sides. Azithromycin 500 mg Film-coated Tablets: white to off-white, elongated, with a breakline on one side and a dividing line on the other side. Medscape - Infection-specific dosing for Zithromax, Zmax (azithromycin), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. Azithromycin for Injection is a macrolide antibacterial drug indicated for the treatment of patients with infections caused by susceptible strains of the designated microorganisms in the conditions listed below.