Pharmacodynamics (药物效应动力学药物效应动力学, 药效学药效学)3. The tasks of Pharmacology:MTCMECEffective doseTherapeutic doseTherapeutic doseMinimal toxic doseMinimal toxic doseMinimal lethal doseMinimal lethal doseMinimal effective doseMinimal effective dose(threshold dose(threshold dose) logD(C)050100 logD(C)050100 E A B A B 50%100% affinity direct effect Agonist + 1 + Partial agonist + 01 +* Antagonist + 0 *