T Nation

Beta Agonists

I was wondering if you could tell me more about Cimaterol and Ractopamine, two beta-agonists used in livestock feed for their proven effect in redirecting nutrients to build more muscle mass. I read they are related to clenbuterol, but could find nothing about their effects and dangers involving humans.

My information is definitely not expert advice on this topic, but I remember that Dan Duchaine wrote that Cimaterol was useless for bodybuilders. And it’s certainly true that you don’t hear about either of those b-agonists being used by bodybuilders. You might try a Deja search to see what you can dig up.