Loveitkillit
What is a stronger appetite suppresant? Ephedrine or phentramine??

I've found Ephedrine taken as the stack to be far better than Phentramine but it also depends on your other daily nutrition regime.

Yes it 'works', in that they are structurally similar sympathomimetics so have similar effects on adrenaline.It  must be noted however, that pseudo eph is much less 'potent' in this regard (effect on thermogenisis). It also exerts much less of an effect in relieving bronchospasm.
 
In short, Ephedrine is much more effective both in terms of it's effect on adrenalin and nor-adrenaline, and also it's action as a bronchodilator.