Scientific research suggests it relieves symptoms of psoriasis and other skin conditions, but it may also boost your mood, offer antibacterial activity, and ease IBS and heartburn. 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.
Taking Oregon grape internally for more than two to three weeks is not recommended.