The very 3 weeks is a fairly normal schedule for Xelox (Xeloda pills +the nasty Oxaliplatin). I did it, originally scheduled for 6, but we didn't do the 6th Oxali due to a bad reaction on the 5th infusion, 6th round was Xeloda only. I was only scheduled for 6 because I did Xeloda with Radiation prio...