I searched the forums, but the info seems mixed in other topics. Can we gather here, in a single thread, what people have found to be effective treatments for tachycardia? My daughter had good luck with Florinef and K-Dur, but then her doctor took her off and won't put her back on. He has her on a beta-blocker instead now. He's not giving her any kind of explanation either. I don't have serious NMH/POTS, but do have tachycardia. I suspect I'd make another increment of improvement if I could get the tachycardia under control. Verapamil doesn't seem to be doing anything for me. I can't get a beta-blocker because of my asthma.