A new study suggests that one of the most popular antibiotics on the market for treating bacterial infections could be deadly among certain patients.
Zithromax, commonly known as the Z-Pak, is prescribed for all types of bacterial infections from ear infections to strep throat.
In the study published in the New England Journal of Medicine, researchers at Vanderbilt University looked at the records of thousands of Medicaid patients over a 14-year-period.
They found a 2.5 percent greater risk of death from heart disease in the first five days of using Z-pack other than using other antibiotics or no antibiotic at all.
"The study suggests that if you have heart disease or a serious heart condition and you take Zithromax, you really shouldn't," says Dr. Mitchell Brooks, a Dallas, Texas physician.