You can look up this word in my WordPress.

Probably a big advance in the treatment of cardiac arrhythmias where the regular drugs are quite toxic and may even not help

See below for further important indications!

Clinical studies [hParmaceutical Press 2007]

There is a lack of clinical research assessing the effects of golden seal and rigorous randomised controlled clinical trials are required. Berberine is stated to be effective in the treatment of acute diarrhoea on the basis of data from several clinical
studies. It has been found effective against diarrhoeas caused by Escherichia coli, Shigella dysenteriae, Salmonella paratyphi B, Klebsiella, Giardia lamblia and Vibrio cholerae.( Berberine has been used to treat trachoma, an infectious ocular disease caused by Chlamydia trachomatis, which is a major cause of blindness and impaired vision in developing countries..
Clinical studies have shown berberine to stimulate bile and
bilirubin secretion and to improve symptoms of chronic
cholecystitis, and to correct raised concentrations of tyramine in patients with liver cirrhosis.