Toprol-XL and arrhythmia

I was on toprol-xl for almost 8 years without many problems. i also take isosorbide mononitrate.A few months back I was switched to the generic version (metoprolol succinate er by sandoz) now i have many problems.First I have to say I am disabled with severe COPD. Although I do not feel depressed I have a lot of symptoms of depression. Remember I had no symptoms what so ever until switched by Walgreen's or HMO or Doctor to the generic version. Not sure what to do I have a doctor that does not truly listen,plus he did not want me on toprol xl to begin with. Even though it was good for me. Good luck people!

PEOPLE, PLEASE DO NOT DISCONTINUE THIS MEDICATION SUDDENLY, IT CAN BE DANGEROUS!!!

I have been reading about this medication here for some time, and I feel concerned when I read about someone deciding to just quit taking it suddenly. I personally intend to quit as soon as I find a doctor with enough knowledge to help me wean off of it in a safe manner. I've been on it for two years, and the side effects have grown worse than my original health problem, so I understand wanting to just up and quit taking it, but after learning the hard way, I've found out it's not so easy.

Do your homework, read and learn about the potential 'rebound effect' and by all means, talk to your doctor before doing something that may cause you to be in danger ( as in having a heart attack)...if you don't believe me, learn for yourself, the information is easily researched.

Blessings, and good luck...

I have been taking Toprol for about 6 months.. I have gained about 15 lbs. I have been trying to exercise to take it off with no success. I am short of breath and am having a hard to time exercising. I was not like this before. I am taking Toprol for arrhythmia.