Antipokhmelin's a Russian tablet that allegedly helps to prevent or overcome the negative effects of alcohol consumption and hangover. The main ingredient's succinic acid, also found in amber. It's marketed as RU-21 in the US and UK. Claims of effectiveness are based primarily on anecdotal evidence, and there've been no known placebo controlled double blind studies published in peer reviewed scientific journals. RU-21 was developed by Prof. Eugene Mayevski at the Institute of Theoretical and E… (More on Ru-21)