elk antler? i'm game. i'd like that info also please. one thing i'll say about tendonitis is 2 weeks rest! if you don't and it becomes chronic tendonitis you have to rest it for 6 months. pain releiver can be dangerous and make the problem worse in the end because you don't feel the damage you are doing. i got it in my shoulder a couple times, the rest works. now i do those arm circles forward and back, hand up and down, to get it warmed up before i shoot and it's made all the difference for me - even though it looks a little silly. also ease back into it and stop at the first sign of pain. i got the info from a medical book when i had it in my shoulder.