Since ephedrine is a central nervous system stimulant/irritant, it's more likely to be catabolic than anti-catabolic.
If anyone can present evidence of ephedrine suppressing cortisol, I'd like to see it-- preferably something not conducted by Twin Lab.
macro: I was unaware than ephedrine inhibits conversion of T4 to T3. If that's the case, it's yet anothor reason it works against your goals of burning fat.
Ephedrine is one of the worst supplements available. But it has a noticable effect, which makes people believe it works. It doesn't -- not at burning fat at least. It only supresses appetite.