Yes, it would be good if the person is willing to hear about what you think and the pdoc. Drinking on ANY meds is a risky thing, had to find that one out the hard way. I know I use to in the beginning to use alcohol as a way of escaping what I did not like in the world and could not face. Then, the alcohol took over me and I had no control. That is when things got alot worse and down the dreaded road I went. Had to climb back out the hard way but have learned from all the things I have done wrong and remember them. It is good your friend has someone like you around who cares. That makes it a little easier on them. Wishing you the best and keep us informed.
Allan