As I understand it, the 3rd dose is still the induction phase. Doubt you are immune already. Some it doesn't work for, some have a reaction to it, most have to build it up in their system to allow for healing of the colon. Don't give it up too easily. You don't get to go back on it---then you will have antibodies that fight it. I am not saying it is the right drug for you, just that it might still be. Check out more info before going to the last drug option--Humeria.
Daughter,15 diagnosed 1-08 w/ UC .
Previous drug sampling: Asacol, Prevacid, Flagyl, Prednisone- 50mg to 0, 4 major flares '08.Hospital four x. Low residue diet,
6MP, Colazal , Cortifoam enemas,
Trying probiotics, Niferex, fish oil, Magnesium, Acupuncture.
Remicade 10mg per kilo@ 8wks, since 10-08. Still on 6mp and Colazal