Hi all! I am currently on Effexor Cr and at 150mg a day. I have been doing some serious jaw clenching that I believe is from the medication. I have family members that have TMJ (lockjaw disorder) Does anyone else experience this? I read that a muscle relaxer is a great way to relax the jaw muscles, but my physician is reluctant to prescribe valiumfor me. I told her to fuck off under my breath and figured I would just make some valium. Can someone explain why physicians are so difficult?! Anyone else grinding the enamel off their teeth?