Arrhythmia and dysrhythmia are terms that both describe an abnormal heart rate or rhythm, with arrhythmia being the more commonly used term. An abnormal heart rate can be either faster (tachycardia) ...

An arrhythmia is an irregular heartbeat that may feel like a racing or fluttering heart. It is not always serious but can sometimes indicate a potentially fatal heart problem. Arrhythmias — sometimes ...

Medications for arrhythmia include antiarrhythmic drugs that restore the heart’s normal rhythm by affecting the heart’s electrical current. Calcium channel blockers can help manage arrhythmia, angina, ...