Yes, when we started on Nutramigen, our DD did have the "runs" for a day or two, and then things leveled out.
We used that formula for the greater part of 12 months and other than the start, it worked wonders. The cost is outrageous, but whatever is in it really helped with lots of things.
~Sandy/DD born via emergency C at 35 wks/1 day June '03 due to Severe PE/class III HELLP
CAUGHT THE EGG!! Estimated hatch date: 3/13/05; scheduled C at 39 weeks...or earlier if needed.