Fluoroquinolones cleared of arrhythmia risk

A major study has found no link between fluoroquinolone antibiotics and fatal cardiac arrhythmias despite previous concerns that they may cause QT prolongation.

In a review of data from more than two million courses of fluoroquinolone antibiotics, Scandinavian researchers found that the risk of serious cardiac arrhythmias for the oral antibiotics was similar to that of the non-fluoroquinolone antibiotic penicillin V.