Re: 9/1 Need Advice Gravol?????
The name that most people this side of the border are going to be familiar with is Dramamine. I don't know that this would be the medication for the symptoms you're describing -- it's most commonly used for motion sickness.
You might want to try Pepsid AC. It can be very effective in settling a kitty's stomach. You use 1/4 of a 10mg tablet. (The tablets are small and, of course, challenging to cut.) It sounds like whatever it is that Mitzy had, she's generously passing it around to the rest of your cats.