Toprol XL is the the timed release version of Metoprolol
. If you're on 25mg, that is a teeny-tiny dose
, I was on 100mg, at one time, and others have been on dosages as high as 400mg. Stopping it should not be a problem. For my ablation I had to stop my dose for the procedure. My electrophysiologist told me as well to just stop it cold. Because I find it hard to follow instructions (what do they know) ;-) I decided to dial it back slowly instead. Same results, except I did it my way.