Well, I dosed 350mg dxm, 50mg doxylamine, and a single CCC. The trip was more "hazy" then a normal dxm trip, but was only mildly euphoric (dxm magic at these doses are pretty dead these days), and I would get cevs that seemed to "snap" into still frames for a split second and then went back to moving blurs like usual. After smoking weed the trip really took off as far as euphoria goes and I got some 3d cevs.
I would say it is rather inconclusive as to whether or not the doxylamine potenated or not.
SCIENCE!