"The authors conclude that a kudzu extract dose of up to 2 g/daily is safe and effective for “chronically” reducing alcohol intake. However, a clinical trial of a longer duration and enrolling more subjects, including women, is needed to confirm these promising initial results. Based on this study and previous studies, a daily dose of 1 g of standardized concentrated kudzu extract is advisable. A future article on the authors’ 4-week clinical trial on a kudzu extract and alcohol consumption is in progress."
http://www.herbalgram.org/iherb/herb...iew.asp?a=3070