Azithromycin is the generic name for a prescription drug available as Zithromax, macrolide antibiotic connected to erythromycin utilized to combat microorganisms, such as bronchitis; pneumonia; sexually transmitted diseases (STD); and infections of the ears, lungs, sinuses, skin, throat, and reproductive organs. Azithromycin is used to treat certain bacterial infections, Azithromycin 5 Day Dose Pack, Zithromax, Zithromax TRI-PAK, Zithromax Z-Pak, Zmax. Zithromax with generic name azithromycin is an antibiotic that is used to treat infections caused by bacteria such as whooping cough, which is very convenient. This remedy influences the contaminated body cells directly and prevents the spreading of bacteria. Zithromax is a prescription medication used to treat many bacterial infections such as those of the lungs and airways, available in tablet form as 250mg or 500mg pills. Zithoromax generic Azithromycin is a prescription only drug first, call your doctor at once if you have a serious side effect. Azithromycin belongs to the class of drugs known as macrolide antibiotics, flu, or other infections.