When I used to take Remicade, I would get pretty constipated, especially the first week after treatment or so. I used to eat whatever I wanted at the time and not get sick, resulting in a big weight gain! :( But if I would go too many days without going, I would take a suppository or enema. You could also try taking Miralax or Benefiber.
Diagnosed with Left-sided UC in 1995 at age 15,
Prednisone, Rowasa & Hydrocort. Enemas, Proctofoam, Sulfasalazine, Asacol, Probiotics, Fish Oil, Aloe Juice, Canasa, Enotcort, Colazol, Anamantle, Remicade, etc... had almost recto-vaginal fistula in 2004, put on Remicade, August 2007:Increased Remicade dosage-700mg every 6 weeks,diagnosed w/ Psoriatic Arthritis & Fibromyalgia Current meds: Clorazepate, Proctofoam HC, Glucosamine 500, Vitamin B, Lomotil, Tylenol pm, Lyrica started 1/17/08