Depending on dosages... I believe clen to be strong enough to combat muscle loss IF protein intake is VERY high.
The idea with T3 is to stop it a week to two prior to ending any stack you are using it with. Reason? It takes at least this long for normal thyroid product to being again. I have experienc with this and can say it is true.
If you stop T3 first... your other enhancer should be able to stave off the effects of shutdown.
Here's the problem.... if you ar eusing clen.. the effects of this compound wear off at about the 18 day mark. Your barely into the T3 when you have to stop it going by what I just proposed.
Another option is to run Ketotifen. Tthe ketofen keeps the A2 receptors from downregulating.
You could run this stack for many months:
1. 60mcgs Clenbuterol daily
2. 1mg Ketotifen Daily
3. 25mcgs T3 Daily
Just some thoughts
A