A member asked:

Are there any antibiotics that don't cause ecg changes ?

2 doctors weighed in across 2 answers

Yes: Most don't. A few have the potential to prolong the qt interval. Zithromax and Levaquin (levofloxacin) are the 2 that have been implicated most recently.

Answered 6/27/2014

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Dr. Gerald Neuberg answered

Specializes in Cardiology

Most do not: The new warnings about Azithromycin and Cipro (ciprofloxacin) are only directed at people with heart disease or with specific drug-drug interactions.

Answered 6/24/2014

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