The Cissus is a good product but it's not really going to help your existing tendonitis. I have AC impingments, and really bad forearm tedonitis from heavy deads and while it helps, its not miracle cure.
Deca and test will help mask the pain, but when you come off, it may be 10X worse. I am going to try Alflutop, I have heard good things about it, 1 ml a day for 21 days, we'll see. As a back up I have an ortho appt for my shoulder for cortisone inject # 2. At some point I will probably have to give up becnching or get arthroscopic surgey. .
The cortisone, icing and physical therapy plus slowly ramping up the weights is your best bet and should help. I ran Var last time I went through physical therapy and got the cortisone inject and it lasted for 18 months.
I ordered some Ibuprofen gel which is wonderful stuff. If you're interested you have to order international. Good luck.