Pfizer, the maker of Z-Pak, said it has already updated its drug labels to include heart rhythm risk. But patients are advised to remember that azithromycin is a very effective antibiotic, ...

MINNEAPOLIS (WCCO)-- There's new warning about a popular antibiotic you might have taken. The Food and Drug administration says azithromycin, known as the Z-Pak, can cause a potentially deadly ...

Azithromycin, a commonly-prescribed antibiotic, may trigger a potentially deadly irregular heart rhythm for some patients, the Food and Drug Administration (FDA) warned Tuesday, CBS News reports.

Z-Pak May Increase Health Risks in Some Patients Dallas doctor who takes drug says he wants to see more information on study By Ellen Goldberg • Published May 16, 2012 • Updated on June 8 ...

The Z-Pak is a favorite antibiotic because you take it for only five days instead of 10. "I took my Z-Pak and it worked great. After a day, I was feeling back to my normal self," Melinda Roskos said.

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 ...

The popular Z-Pak antibiotic, linked to heart-rhythm problems in March, may not be risky for the average patient, a new study suggests. The FDA maintains that patients with certain risk factors ...

Pfizer is updating Z-Pak labels with the new FDA warning listing those conditions. However, many people don't know they have those conditions, and many ask for Z-Pak by name when they feel sick.

With this year's cold and flu season recorded as one of the worst, doctors have been quick to prescribe a popular antibiotic known as a Z-Pak. But now, they're changing prescriptions after the federal ...