Barberry Root Herbal Medicine The chemical berberine, which is found in the root of barberries (shown above), is believed to have health-promoting properties. The natural compound berberine, which is present in plants like goldenseal and barberry, has promise for the treatment of lung diseases. According to a recent study, the natural compound berberine, which is present in plants like goldenseal and barberry, inhibits the growth of lung cancer cells in the lab. It also lessens inflammation of the airways and reduces the damage to healthy lung cells exposed to the toxins from cigarette smoke. Around 1.8 million deaths from lung...