Hello Dreamer555,
I have been taking Metoprolol for almost 3 years. I started taking it after having 2 heart attacks and a triple bypass. I personally don't have an adverse effects from it.
There is a lot of in depth information on drug interaction, and medical conditions that would cause you to have a problem with this drug listed on the data sheet that comes with it. It is in the group of beta blockers, there is a lot of information to be found about these.
I wasn't aware that you would be given this type of medication if you don't, as you say, need to be on it. Normally your doctor would only prescribe it if he indeed thought it necessary.
goldenwings