Abstract
The Biopharmaceutical Classification System (BCS) has revolutionized drug development by classifying drugs into four categories based on their solubility and permeability. This classification facilitates regulatory decisions, supports biowaiver approvals, and guides formulation strategies. BCS serves as a predictive model for oral bioavailability and plays a significant role in optimizing drug design, reducing development costs, and accelerating market entry. This article explores the framework, application, and impact of BCS in modern pharmaceutical sciences.
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