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. The FDA is warning the public that the pills can cause abnormal changes in the heart's electrical activity that may lead to a fatal heart rhythm. Patients with known risk factors such as existing QT interval prolongation, low blood levels of potassium or magnesium, a slower than normal heart rate, or those who use certain drugs to treat abnormal heart rhythms, or arrhythmias face the greatest risk. "Health care professionals should consider the risk of fatal heart rhythms with azithromycin when considering treatment options for patients who are already at risk for cardiovascular events," the FDA said in its March 12th update. The new guidance was prompted by a May 2012 study and another study by the antibiotic's manufacturer, Pfizer, that looked at risks to electrical activity of the heart in azithromycin-takers. Last May, a New England Journal of Medicine study paid for by the National Heart, Lung and Blood Institute found there would be 47 extra heart-related deaths per one million course of treatment with five days of Zithromax, as compared to 10 days of amoxicillin and other antibiotics. The risks of cardiovascular death associated with levofloxacin (Levaquin) treatment were similar to those associated with azithromycin treatment, according to the FDA. "People need to recognize that the overall risk is low," Dr. prednisone 60 mg for 5 days Azithromycin 5 Day Dose Pack is an antibiotic that fights bacteria. Azithromycin 5 Day Dose Pack is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases. Azithromycin 5 Day Dose Pack may also be used for purposes not listed in this medication guide. Azithromycin 5 Day Dose Pack 5 Day Dose Pack is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. It is not known whether azithromycin passes into breast milk or if it could harm a nursing baby. Do not give this medicine to a child younger than 6 months old. Do not take this medicine in larger or smaller amounts or for longer than recommended. The dose and length of treatment with Azithromycin 5 Day Dose Pack may not be the same for every type of infection. Propranolol 80 mg anxiety Levitra usa Physician reviewed Azithromycin 5 Day Dose Pack patient information - includes Azithromycin 5 Day Dose Pack description, dosage and. clomid delay period Medications are known to interact with Z-Pak. Includes tramadol, trazodone, atorvastatin. Azithromycin is one of the most commonly prescribed antibiotics on the market. Most people know it by the name. Z-Pak. Millions of doses have. Zithromax Z-Pak is an antibiotic that fights bacteria. Zithromax Z-Pak is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases. Zithromax Z-Pak may also be used for purposes not listed in this medication guide. Zithromax Z-Pak is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. It is not known whether azithromycin passes into breast milk or if it could harm a nursing baby. Do not give this medicine to a child younger than 6 months old. Do not take this medicine in larger or smaller amounts or for longer than recommended. The dose and length of treatment with Zithromax Z-Pak may not be the same for every type of infection. Azithromycin is used to treat certain bacterial infections in many different parts of the body. This medicine may mask or delay the symptoms of syphilis. Azithromycin belongs to the class of drugs known as macrolide antibiotics. It works by killing bacteria or preventing their growth. However, this medicine will not work for colds, flu, or other virus infections. This medicine is available only with your doctor's prescription. Azithromycin z-pak Azithromycin - eMedicineHealth, Z-Pak azithromycin Drug Interactions - Viagra 100mg cost Azithromycin is the generic name for a prescription drug available as Zithromax, Zmax, and Z-Pak. The drug is an antibiotic used to treat a. Azithromycin Zithromax - Side Effects, Dosage, Interactions - Drugs Azithromycin Z-Pak is safe if your heart is healthy Heart UT. Azithromycin 3 Day Dose Pack, Azithromycin 5. - eMedicineHealth Zithromax Z-PAK azithromycin is a semi-synthetic macrolide antibiotic used for. Call your doctor right away if a baby taking azithromycin becomes irritable or. sildenafil 50 mg reviews Z-Pak is a form of Zithromax, a brand-name version of the drug azithromycin. Find out if it's a good choice to treat strep throat. Azithromycin, a commonly-prescribed antibiotic, may trigger a potentially deadly irregular heart rhythm for some patients, the Food and Drug.