Clenbuterol - long term side effects

[paxman1]

I've read quite a lot articles about clenbuterol and since I've never used it before, I'm most concerned about it's side effects. There are plenty of short-term side effects, but I couldn't find any information on long term, permanent side effects. To be more precise, how much damage would I make to heart if I would run it for 2x2 weeks? I know that I should take 5000 mg of Taurine and 1000 mg of Potassium with it, but still: should I be worried?