Hello all, before hand I'd like to say thank you to anyone offering assistance. Here is the deal. I just started Clenbuterol two weeks ago and am currently on the second week keeping it steady at 80 mcg a day. Anyway, I got blood work done a week ago, and received terrible news. I have low thyroid and low testosterone. For those who don't know low thyroid means that I have a naturally slow metabolism a long with a lot of other bad things. This is the reason I resorted to Clen to help remove the last bit of fat, and now I know why I gain fat so quick. Anyway my doctor prescribed me levothyroxine (synthetic T4). I am supposed to start taking it to get my thyroid levels back to normal. The issue now is that I am still on the clen. Should I stop the clen all together? the T4 will not raise my thyroid levels above normal as I read that T4 stops converting to T3 once your levels are normal. how should I address this situation?