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Author: Admin | 2025-04-28
FAQs A-Fib Drug Therapy: Medications“Which antibiotics are less liable to cause an A-Fib attack? How is Clindamycin for dental work? In the past I reacted to Azithromycin and Advil.”To answer these questions, I turned to members of our world-wide A-Fib.com Advisory Board. Several EPs shared their opinions, research data and insights from their practices.Expert Opinions from Several Members of our A-Fib Advisory Board:One EP’s response: “There is no particular association that I can think of or have seen with antibiotics, but likely more of a personal idiosyncratic reaction to the drug. Everybody is different and has a different trigger.”Another EP wrote: “Most antibiotics are well tolerated by patients with A-Fib.A well-known authority on pharmaceuticals and A-Fib stated: “I know of NO data to prove a link between any antibiotic and A-Fib.””Most [antibiotics] do not change the way the heart’s electrical system functions other than prolonging the QT interval, which should have the opposite effect…act like antiarrhythmics.”From another EP: “Most [antibiotics] do not change the way the heart’s electrical system functions other than prolonging the QT interval, which should have the opposite effect. In the quinolone family, (antibiotics) like Levofloxacin and Ciprofloxacin act like antiarrhythmics. However, some antibiotics have worse gastric tolerance effects like Azithromycin and Erythromycin which can become a trigger for A-Fib by GI stimulation such as nausea or reflux. Medication to counter that side effect can be used, such as acid reducers.”One EP called our attention to a study that focused on ventricular arrhythmia rather than on A-Fib.
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