There's been plenty of cases where antiemetics or not they throw up and still died. As far as I'm concerned it barely matters. You're drinking 25 grams but all that needs to get absorbed into your bloodstream is like less than 1/10 of that. If you can manage to keep it in for 5 minutes then you're probably already past the point of no return, just lay on your right side immediately after ingestion. If you weigh little and are skinny then that's an understated advantage as well.