Clen Cycle Critique

during the 2 off weeks on a clen cycle, what are the thoughts on using an otc fat burner versus an ec or eca stack

its a pretty common practice i dont really see any harm

I was under the impression that Clen and Ephedrine both use the Beta-2 adrenergic receptors which is why I never really understood this cycling (Clen and ECA) approach.
Someone can correct me if im wrong.


Also, with a 2on 2off cycle, what would be the proper way to introduce benadryl into the cycle