Can Feliz cause abnormal heartbeat or arrhythmia?
Yes, Feliz has been found to cause prolongation of the QT interval (a type of ECG abnormality) that can lead to arrhythmia (abnormal heartbeat or heart rhythm), which can be dangerous. However, this is very rare according to scientific research reports. Moreover, abnormalities in electrolyte levels (such as potassium and magnesium) may also increase the risk of abnormalities in the heartbeat of people suffering from heart problems. Such people must have an ECG review, before as well as during treatment with Feliz. However, the final decision will be only made by your doctor, after analyzing your health condition and considering all possible risks and benefits of this medicine.