One last response. I had to research Metoprolol to understand why I was experiencing my health decline.That to slow the heart rate the medication has an anti-anxiety portion to it and can "act like a benzo" in the system. That's why you can' just quit cold turkey. I believe that (for me) I'm very sensitive to it and can't take this type of medication. As you will see in the blog/posts some people have been taking Metoprolol for years with no problems.