Trying to manage my father with stage 4 metastatic Pancreatic cancer

My father is struggling. He is on IV Chemo and Pill (Xeloda). He is basically getting sick every time he takes a pill, any pill. He has a grandchild due in Oct and he is fighting to make that. We are only a couple weeks into treatment and it has been very rough. We are crushing every pill we can and trying to give the others with yogurt or something but nothing seems to work. He's getting IV bags twice a week now and we are looking into a feeding tube. He wants to eat but the second he swallows his body rejects it.
Anyone ,have any tips or tricks.
and for the record. I HATE CANCER

Thanks,
AS