i believe clenbuterol and salbutamol are beta 2 agonists. what is ephedrine? which are better beta agonist ? 1,2 or 3? and what are they? or beta blockers? this is for fat burning
Ephedrine works primarily by stimulating the release of norepinephrine, which stimulates all alpha and beta receptors to some degree.
There is one study that suggests that it may also work directly via beta 3, but for the most part, beta 3 receptors are thought not to play a physiologically significant role in humans as far as lipolysis is concerned, so that lone study is questionable, to say the least.