The present textbook on 'Pharmaceutical Biotechnology' is strictly developed, structured, expanded, and expatiated along the guidelines provided by AICTE syllabus for B. Pharmacy-2000. It essentially consists of five main chapters, namely : Immunology and Immunological Preparations; Genetic Recombination ; Antibiotics ; Microbial Transformations; and Enzyme Immobilization. In addition to this, there are five auxilliary chapters, namely : Advent of Biotechnology ; Biosensor Technology; Bioinformatics and Data Mining ; Regulatory Issues in Biotechnology ; and Safety in Biotechnology, which have been duly included so as to stimulate the students' interest and expand their knowledge.Each chapter has been carefully and adequately supported with a brief introductory note, followed by theoretical aspects, graphics, neat well-labeled diagrams, explanations, discussions, and profusely supplemented with appropriate examples to make the relevance of each topic more comprehensible to the students of Pharmacy both in India and abroad.