Discovery of a new drug: A fundamental review

The discovery of a new drug started with drug’s compounds derived from natural sources (animals, plants, microorganisms or marine sources) or compounds are synthesized in the laboratory. The Researchers insight into a disease process and design a product to stop or reverse the effects of the disease. Now study the Existing treatments followed by new technologies make drug to target specific sites. Once researchers identify a promising compound then a series of experiments conducted. How it is absorbed, distributed, metabolized and excreted, best dose, best way to deliver, side effects, effectiveness and mechanism of action.