Verapamil is a calcium channel blocker that works at the AV node to slow heart rate and the heart's automaticity. It is one of many treatments for PSVT, and there are different types of SVT which respond differently to different treatments. If you are having trouble with the verapamil or you don't think it's working, discuss it with your physician. There are several other medications that can be tried. Hope this helps!
Thank you, am in the process of working with my physician on that matter. In the meantime the late night pulsations and lack of sleep are worrisome.
Thanks again for your response.