Poliana, I haven't had that drug but have had my share of nausea and vomiting from my chemo. There are a number of antinausea meds available to help. My oncologist prescribes at least three different ones every time I have chemo as some seem to work better than others for different people and chemo drugs. Starting antinausea meds at the first sign of nausea or even as he takes the meds that make him nausous will keep him aheadof the nausea.
Also with nausea you and your father need to watch for signs of dehydration as it is easy to get dehydrated quickly when nothing stays down and the nausea and dehydratuion can make each other worse resultingin a downward spiral that will land him in the hospital getting rehydrated. Good luck