Biopharmaceutics explores the interaction between drug properties, formulations, and biological systems. This eBook covers its role in drug development, formulation strategies, and personalized medicine, focusing on key concepts like drug absorption, distribution, metabolism, and excretion (ADME), and how factors like solubility and permeability influence these processes.The eBook discusses the Biopharmaceutics Classification System (BCS), regulatory frameworks like GMP, and advanced drug formulation technologies such as nanoparticles and liposomes. It highlights the relationship between pharmacokinetics and pharmacodynamics to optimize drug effectiveness.Additionally, the text covers the growing importance of personalized medicine, with case studies on monoclonal antibodies, gene therapies, and the development of mRNA vaccines during the COVID-19 pandemic. This eBook serves as a valuable resource for researchers, healthcare professionals, and students, emphasizing biopharmaceutics' vital role in improving patient care.