whether Allegra can cause arrhythmias
Some physicians are now questioning whether Allegra can cause arrhythmias...like Seldane.
Allegra (fexofenadine) is the active metabolite of Seldane (terfenadine). Studies so far suggest that Allegra is not likely to cause torsades and other ventricular arrhythmias.
But now there's a report of ventricular arrhythmias in a patient on Allegra.