FDA warns Zithromax can cause deadly irregular heart rhythm

Posted in Drug & Medical Devices on March 13, 2013

By Arthur Elk The U.S. Food and Drug Administration issued a warning Tuesday that a common antibiotic can cause a potentially fatal irregular heart rhythm in some patients. Concerns about azithromycin, sold as Zithromax or Zmax, were first raised last May when a study in the New England Journal of Medicine compared the risk...