Re: metoprolol, with SVT diagnosis, after weaning off Amiodarone and a failed ablation, I've been on Metoprolol for over a year now. Love it! Taking a 25 mg pill daily. Never have had to use it as a P-I-P. Resting heart rate went from mid-60s BPM to mid-50's. Occasional tachycardia events rarely exceed 120 BPM. Hope it works for you.