Handbook of Physical Pharmaceutics I

It is one of the foundational subjects in pharmaceutical sciences, focusing on the physicochemical principles that govern drug performance, dosage form design, stability, and bioavailability. It deals with the physical and chemical properties of drug molecules and excipients, as well as the interactions occurring in pharmaceutical systems. These principles help in predicting how a drug will behave during formulation, storage, and after administration into the body. It integrates concepts from physics, chemistry, and mathematics to provide a strong scientific foundation for understanding dosage form design. The major areas include states of matter, solutions, solubility, colligative properties, partition phenomena, pH and buffers, interfacial phenomena, and complexation. Each of these topics plays a crucial role in ensuring the safety, efficacy, and quality of pharmaceutical products.