I'm also on the 10mgs/kg, every 6 weeks. I started on the 5mg dose, it worked great for about
3 infusions, then the effects started to lessen. We tried the 10mg dose, have had 4 infusions at that dose- again, the first 2 worked awesome, & it has lessened since then. I mean, I still consider myself to be in remission, but I'm sure my GI would disagree! good luck! I fear that once the high doses lose effectiveness, you're pretty much screwed....
diagnosed with UC '02
Asacol- 8 tabs/day
Prednisone- 5mgs every other day