We use hydralyte which is similiar to pedialyte but for adults. You can get it in a drink or packages Hydralyte Products most drugs stores in canada carry it.
I would recommend either beer and Clamato juice or a Ceasar.. however some mornings a good shot of tequila will straighten everything out..LOL
I use Nuun tablets in water for running and hot yoga, and they also work quite well for hangover prevention! They are sugar free and easy to drink with water, and easy to take with you anywhere. They are all the rage at every running event expo! On the FAQ section of their website, they confirm that the ingredients are very helpful for hangover prevention. The next time I am at Temptation, I will drink Nuun water as a mixer with raspberry vodka in my bubba cup all day, multitasker that I am ... and take a B vitamin complex twice a day, every day! I would say that the active hydration for athletes would be the best choice for hangover prevention, but any of them would be better than nothing ... Nuun