Definition: Pseudoisatin is a synthetic drug that has been developed for the treatment of certain types of cancer. It works by mimicking the activity of natural substances like berberine, which is found in various plants including African ginseng (Berberis vulgaris), black ginseng (Gingko Biloba), and others. The chemical structure of pseudoisatin is similar to that of berberine, but it has been modified by a linker known as a "synthet