My son and I were diagnosed at the same time with AS two years ago. Currently, my son (14 yrs old) is taking 2000 mg of sulfasylazine, an anti-inflammation and a muscle relaxer with no relief. He is undergoing tests to determine whether he is a candidate for TFN blockers. Scary stuff from what I read! I am taking 3000 mg of sufasylazine plus an OTC anti-inflammatory. I have some relief. I have modified my diet removing all starches, not sure if it is making a difference. My question is, what is the normal sulfasylazine daily mg administered?