Pharmacodynamics
| Classification of drug actions |
| The law of mass action in pharmacodynamics |
| Receptor theory of drug action |
| Affinity, association constant and dissociation constant |
| Second messenger systems |
| Cyclic AMP (cAMP) |
| Cyclic GMP (cGMP) |
| Calcium, inositol triphosphate and diacylglycerol |
| Dose-response curves |
| Potency and efficacy |