I am trying to heal up a shoulder problem. I have been told to inject it with deca . The pain doc gave me injections of what he called a steroid and that has helped. Back in the day I shot it full of whatever the big man gave me. now 20 yrs later hurts like hell. So I have been told use deca but should I put with something. I was planning on only 300 - 400 mg per wk.