This document has been uploaded to Scribd by Dr. Robert L. Copeland, Pharmacology Professor at Howard University.
It deals with basic principles of pharmacodynamics like: Concept of specific drug receptors, Receptor Types, Ion-channel-linked receptors, G-protein-linked receptors, Enzyme-linked receptors, Intracellular receptors, Log Dose-Response Curve, Agonists (or Full Agonists), additivity and sinergism.
You can download the power point file of this pharmacology lecture.