ankylosing spondylitis
"Before being diagnosed with Ankylosing Spondylitis I was treated for general chronic back pain. I was started on Ibuprofen, but had to up the dosage. My GP changed me to Diclofenac (50mg 2x daily) but I didn't find it effective. I went back to 100mg 4x daily Ibuprofen which was much more effective for me. 



I had no side effects while taking it."