Anyone gain weight on imuran

Seems like I might need to go back on Imuran. I thought I was in remission for my UC but looks like I am not :( In last month since being off Imuran I have lost 5 pounds but I have also dieted and exercised more so its hard to say if the Imuran was the culprit of my original weight gain. Anyone gain weight on this drug? I am also on Remicade