My son was diagnosed at 10 now he is 15, we have been through so many of the meds, Imuran, methotrexate, LDN, Pentasa, Apriso, EEN. He did really well on them but wasn't ever quite to total remission still lacked an appetite and had very little growth and weight gain was almost non existent. It was not until remicade which we started in January that we have finally seen a solid remission. He is still behind his peers in terms of growth but he is finally growing.
We were reluctant to move to remicade as we always felt that we needed something in our back pocket so to speak we finally were at the point we had tried everything so we needed to give it a shot and if it worked it would hopefully work through his growth years (hopefully longer) and new meds are being studied all the time so if and when it quits working there are or may be other options.