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The U.S. Food and Drug Administration (“FDA”) has warned that use of the antibiotic drug azithromycin (commonly known as Zithromax, Zmax, or Z-Pak) has been linked to an increased risk of cardiovascular death caused by irregular heart rhythms.

Zithromax or Zmax, manufactured by Pfizer, Inc., are widely prescribed antibiotics used to treat bacterial infections such as bronchitis, pneumonia, urinary infections, sinusitis, ear infections and chlamydia. Zithromax is regularly prescribed and packaged in 5 dose packs which are referred to as a Z-Pak.

A study published in the New England Journal of Medicine found an increase in cardiovascular deaths in persons treated with a 5 day course of azithromycin (Zithromax) compared to persons treated with other antibiotics or no drug.

According to a March 12, 2013 FDA Safety Announcement, azithromycin can cause abnormal changes in the electrical activity of the heart that may lead to a potentially fatal irregular heart rhythm. Patients at particular risk for developing this condition include those with known risk factors such as existing QT interval prolongation, low blood levels of potassium or magnesium, a slower than normal heart rate, or use of certain drugs used to treat abnormal heart rhythms, or arrhythmias.

The lawyers at Walton Telken Foster are currently investigating potential claims and lawsuits on behalf of individuals that took Zithromax or Zmax and suffered serious heart related problems, including heart attack, arrhythmia (irregular heart beat), and/or heart related death.

If you or a loved one took Zithromax or Zmax (azithromycin) and developed any of these problems, you may be entitled to compensation. Please contact the lawyers at Walton Telken Foster today for a free consultation and evaluation of your potential claim.