I have a client that is trying to lose the weight and is allergic to all types of asprin. Will the ECA stack work effectively without the Asprin or is there anything else that is OTC that she can get that gives good results?
Some people use Yahombie instead of Aspirin. I've never tried it because ECA works well for me, but I've heard people swear by ECY. Yahombie can have similar side affects as Ephedrine though (jitters, shaking hands, etc..) so start with a low dose if they're stacking with Ephedrine and Caffiene
The EC stack (minus the aspirin) is fine, especially if your client is allergic to aspirin. I cannot professionally recommend mixing ephedrine with yohimibine even though some people tolerate this combo without incidence.
I believe I remember Duchaine saying in an Ask the Guru section once that the aspirin has the effect of not letting your body come down as quickly. I can't remember the specifics but it was something about your body releases some chemical to bring you back down but aspirin somehow counteracts it. Sorry I can't recall anymore but it was something to that effect.