This book offers a comprehensive insight into the application of Fused Deposition Modeling (FDM)-a cutting-edge 3D printing technology-in pharmaceutical manufacturing. As personalized medicine and precision drug delivery gain momentum, FDM emerges as a transformative tool for designing patient-specific dosage forms with enhanced efficiency and control. The book explores the core principles of FDM and its integration into pharmaceutical processes, from formulation to final product development. It addresses critical challenges, regulatory considerations, and real-world solutions for implementing FDM in a GMP-compliant environment. Tailored for students, researchers, industry professionals, and healthcare innovators, this book combines foundational knowledge with advanced applications. It includes case studies, recent technological advances, and expert perspectives, enabling readers to grasp both the scientific and practical aspects of FDM-based pharmaceutical manufacturing.