Hi! Sorry to hear about your son. My son is almost 13 and was dx two years ago. He was placed on 50mg Imuran and 50mg pred immediately. He only weighed 36kg at the time and is very tall (I think that's about 80 pounds?). The Imuran takes a fair while to work, at least 3 to 4 months, I have even heard up to 6. The pred is meant to stop the inflamation in it's tracks while the Imuran has time to take effect. Unfortunately my son is allergic to pred and had severe side affects and so we could only take for about a month before we had to taper unless we were prepared to hospitalise him. But by that time he was getting significant, though not total, relief from his Crohn's symptoms.
Can I ask how much your son weighs and how tall he is? Also how long has he been on meds and what is his dosage? Do you have him on supplements? What are his symptoms now?
Please feel free to private message me. I have definately been down this path with a boy of similiar age and am right there with you. Glad you found the forum. There are heaps of great people, with good advice and encouragement to boot!!
Blessings,
Ams xo