@kb2014a I have mentioned these side effects to the neurologist. One thing I didn't mention to you is that I have Stiff Person's Syndrome, and I have had a Baclofen pump to treat it since 2009. Even though the catheter from the pump was accidentally detached more than a year ago, I was still able to exercise, dance, and walk until early in May. That was around the time I started Xcopri. The neurologist is saying that the stiffness and dizziness are from Stiff Persons Syndrome.