I too was given Vioxx, for tendinitis. I found it keeps down the swelling and pain, however I would seriously recommended seeing a physiotherapist and get that shit straightened out. If your doctor is anything like mine, rehabilitation is seen as a waste of time and unproven. He prefer to hand out scripts. You dont want a bum tendon for the rest of your life, and having to depend on Vioxx or other anti-I's like I did. I found after the stretching techniques, heat, massage, and ultrasound treatments the pain I went thru for 3 months was gone after only a couple short weeks at the physiotherapists! Just addind my 2c from my experiences.
I also kept working out the entire time still, just avoided one arm and used lighter weight. It was in the right bicep.