Muscle Spasm
"I went to my internal medicine doctor on June 10. Told her about my right shoulder hurting - she gave me Flexeril and naproxen together - they work for my condition: rotator cuff. I&#039;ve taken Flexeril in the past for muscle spasms. The only side effect with it is dry mouth.  I don&#039;t have any side effects with naproxen."