This document provides an introduction to pharmaceutical biotechnology. It defines pharmaceutical biotechnology as the combination of pharmaceutical science and biotechnology. It discusses the development of biotechnology from ancient to classical to modern stages. It classifies biotechnology into red, green, blue and white categories. It outlines the scope and applications of biotechnology such as new crops, industrial chemicals, diagnostics, monoclonal antibodies, gene therapy, vaccines and more. It concludes that biotechnology is a fusion of biological sciences and technology that produces beneficial products for humans.