Antipokhmelin is a Russian tablet that helps to prevent or overcome the negative effects of alcohol consumption and hangover. The main ingredient is succinic acid, also found in amber. It is marketed as RU-21 in the US and UK. Claims of effectiveness are based primarily on anecdotal evidence, and there have been no known placebo controlled double blind studies published in peer reviewed scientific journals. However, an April 2004 press release indicated that a study was scheduled to be published in the journal Addiction Biology.
