Dramamine has a non-drowsy formula out, but I have never tried any of that. All I tried was natural stuff (since as a pilot, even in the beginning during our aerobatics phase we could not take any real 'meds). Having said that, there is something in Ginger root that calms the stomach. You can get this either in pill form, or by simply eating ginger snaps (or the med that was listed above with ginger). Just eating ginger snaps a half hour or so before a flight enabled me to do EVERY bit or aerobatics without getting sick.
Also, Here is a reply I posted about someone that was asking about mission:space :
here is the big thing- trust me, I have had to sit through so many aerospace physiology classes I can help here. Guys like me pull 9Gz (yes, G sub z) on a daily basis (although it is in a jet aircraft), but we did not start out being able to do this. It takes time for your 'head' to become accustomed to g-forces, acceleration, AND being able to move your head around.
so as not too get technical- there is a gland that is like a caterpillar with feet attached to your head. It 'floats' in a liquid, and transmits the feeling of the fluid moving down the caterpillar's legs to your brain. When you move your head from side to side, you are giving the brain an input that says 'I am moving this way' - this usually will directly conflict with what your eyes are saying, which is 'No, we are definitely going this way' = the result is that you feel motion sickness.
So, to come back to the real world here, you won't get that feeling in the pit of your stomach that you are falling, but you DEFINITELY do not want to move your head from side to side during the ride. (the above is true for all the spin me around type rides- if you want to look around, turn your head VERY slowly AND methodically- or just avert your eyes.) If anyone wants to know more, let me know and I will email details so as not to bore you.