Supraventricular Tachycardia
"I started taking 50mg and it worked well for about 6 months. Then my flutters started again from my SVT and rapid heart rate. I was switched to 100mg once a day. This med caused me to be quite tired/fatigued. In the beginning I was also dizzy but that eventually went away almost completely. The sleepiness has not gone away but it&#039;s manageable. The good it does for my heart outweighs the side effects for me."