Z Pak - Azithromycin

Azithromycin popularly referred to as a Z-Pak is an antibiotic derived from erythromycin. While it treats a long list of common bacterial infections, it offers no assistance for the common cold or flu. Often incorrectly prescribed, it alters the normal bacteria in the intestine and regularly leads to abdominal upset and diarrhea. One, three and five days courses are available depending on the underlying condition.