I get pretty sick on Vimpat for the first half an hour after it kicks in. Eating something small before I take it helps a lot. Especially in the morning.

Yup. Dilantin will do that to you

I don't feel well either when it gets hot. Before you take your medication try eating something to coat your stomach. Stay hydrated. Hope it gets better for you.

I'm currently on Tegritol but it was Dilantin that made nauseated 24/7.

I had nonstop nausea on my first drug then when I switched to the one I'm on now I get nauseated in really hot weather.