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Study Links Zithromax to Pyloric Stenosis in Infants

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Jasmine Roziers3 years ago

A new study shows that the antibiotic azithromycin (Zythromax) is linked to an increased risk of pyloric stenosis in infants.

Details of the Azithromycin

Health Day reports that the study conducted by researchers at the Uniformed Services University of the Health Sciences confirmed that, like the erythromycin, the antibiotic azithromycin is associated with an increased risk of pyloric stenosis in infants.

According to the study, treatment with azithromycin was associated with an eight-fold increased risk of pyloric stenosis when used during the first two weeks of life, and a three-fold increased risk when used in infants between the ages of 2 weeks and 6 weeks.

The study was only able to determine a correlation between azithromycin and pyloric stenosis, not causation.

About Pyloric Stenosis

  • Pyloric stenosis is a serious gastrointestinal condition involving the digestion system that affects about two in every 1,000 babies.
  • Pyloric stenosis occurs when the opening from the stomach to the first part of the small intestine narrows due to enlargement of the muscle around this region.
  • While the condition can be detected before birth in Ultrasounds, pyloric can also be identified through the following symptoms, including fever, sunken eyes, failure for baby to gain weight, projectile vomiting, increase in tiredness associated with dehydration.


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