Andon Science (Limassol) on 06/12/2022:

Since I am a researcher, I found this curement by complete coincidence. In rare occassions that I may eat something, that may irritate the stomach, I take two capsules of 500mg (1000mg). I am not cooperating with any vitamin company, thus I will mention which brand works for me. I did not test any other brands, thus I do not know if other brand works. The brand name is "Nature's way" and I bought it from iherb. The pain dissappears in very quick time. I Google searched Oregon grape for stomach pain and I found this in brief (you can google search also "Oregon grape for stomach pain and see the results"). This was the result in Google search:

"Oregon grape is a plant. The root and root-like stem (rhizome) are used to make medicine. Oregon grape is used for stomach ulcers, gastroesophageal reflux disease (GERD), stomach upset, as a bitter tonic, to treat infections, and to cleanse the bowels."