The medicinal plants that grows in tropical forests in World. Its active ingredients and extracts of plants (leaves, roots, stems, flowers, fruits) are used in ancient medication to treat varied diseases and that they are gift within the market as pharmaceutical merchandise (solid, liquid, semisolid, powder forms).industrial merchandise supported substances of plant origin that are usually connoted as natural have to be compelled to be subjected to watching and analysis by health authorities for his or her potential impacts on public health. The monitoring and evaluation of these products are critical because the boundary between a therapeutic action and a functional or healthy activity has not yet been defined in a clear and unambiguous way. Therefore, this merchandise are thought of borderline products, and that they need careful and rigorous studies, so as to use them as complement and/or even replacement of artificial medication that are characterized by side effects and high economic costs. This review explores the active constituent of some plant having medicative result on the body. These are the active ingredients obtained from plants, the chemical that have a marked, determinable physiological and so, probably medical activity upon the body. These constituents and their actions inside the body also are remarked as their pharmacological medication. The indigenous herbs of diabetes mellitus, liver disorder and cancer are framed here with its medicative uses.
