Some of my medications cause nausea too. Peppermint tea helps me a lot, as does sucking peppermints. A lot of people suggested ginger tea too, but I can't stand ginger so I don't know if that works.

It's up to you in the end though really, if you can't deal with the nausea then you can stop them yourself. One idea would be to go to your doctor and say you are going to come off them because you cannot bear it, but that you would be interested if there are any alternatives.