Drug Design Org is an educational resource focused on the principles and methods of rational drug discovery and design. Its learning materials explain how molecular recognition works, including the lock-and-key and induced-fit models, and show how these concepts guide the development of compounds that interact with biological targets. The site covers both receptor-based design, which uses a target’s three-dimensional structure, and pharmacophore-based design, which draws on known active molecules when that structure is unavailable.

Its online chapters and case studies explore drug discovery, structure–activity relationships, molecular docking, protein structure, cheminformatics, molecular geometry, library design, pharmacokinetics, and ADME and toxicity prediction. Additional topics include molecular mimicry, bioisosterism, peptidomimetics, database searching, QSAR, and 3D-QSAR. The materials describe a practical discovery cycle: design compounds, synthesize and test them, then refine and optimize promising structures. Drug Design Org also points learners to external courses and tutorials. The site presents educational content rather than a catalog of medicines or commercial drug-development services, helping readers understand the scientific approaches used to identify and improve potential drug candidates.