Me, I've done asacol and had great results BUT the side effects, tiredness, lips felt like blisters and I'm sure others I can't think of but these were the main two was cauesed by Asacol
I'm on colozal and no problems whatsoever! I feel great on it. I realized what was making me tired was taking Vitamin B that had valerian root in it. I used it to relax my nerves.
I like colozal a lot! I take 2 pills twice a day.