back pain
"Have used off and on for three years for severe back pain/spasms as well as tendinitis of the elbow.  Diclofenac (75mg) is moderately effective at best, at least for me.  It's about the same as a single Ibuprofen (Advil) which is to say not useful for serious pain.  Everyone's different I guess.  Unfortunately my doctor refuses to prescribe anything else."