Z-Pack antibiotics are a five-day course of azithromycin that were prescribed ... a few weeks even). That might make you think your random cold has graduated to the level of, say, bronchitis, ...

More than 40 million prescriptions a year are written for azithromycin, for everything from bronchitis to urinary tract and skin infections. But like all drugs, azithromycin has its side effects.

The antibiotic that's sold as Zithromax, Zmax or sometimes referred to as a "Z-Pack" is prescribed to treat bacterial infections such as bronchitis, pneumonia, or ear infections.

LOS ANGELES . The antibiotic, sold under the brand names Zithromax and Zmax as Z-Pak capsules, is produced by Pfizer and is commonly used to treat bronchitis, pneumonia and other infections.

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.

In one study, the FDA warns that those with preexisting heart conditions might want to seek alternative antibiotics since the powerful "z-pack" stimulant can cause fatal heart rhythms in certain ...

The agency said Tuesday that it is adding new warnings to the label of Zithromax, which is commonly used to treat bronchitis, ... FDA adds heart risk warning to Z-Pak.

CHARLOTTE, N.C. — If you've ever had an ear infection, bronchitis or pneumonia chances are you've taken azithromycin, commonly called a Z-Pak ...