I broke my kneecap and had surgery nine weeks ago. I seemed to be doing well until last week. I started having severe stabbing pains in the right side of my knee last week when I would try to stand up, walk or when trying to sit down. I have been taking 10 mg of Norco for pain. My doctor says it is probably muscle spasms causing this new pain and prescribe 2 mg valium. It did nothing and today called in a script for 10 mg Flexoril. Since his office is closed now, need to know if I can take the Norco and Flexoril together at the same time or should I wait in between.