Ropinirole caused my OH nausea for a while. BUT there is a drug that can help with the nausea and they took it for some time until they became accustomed to Ropinirole. It's called Motilium
I'm surprised that Admin. didn't know to recommend or suggest this. However, you do need to take advice from your consultant, GP or PSN. I can only say how we found it useful in combating the nausea that Ropinirole caused initially.