Anatomy General anatomy d146a142 Efficacy of the drug refers to A Affinity of the drug to bind to the receptor B Affinity of the drug that binds to the receptor and activates it C Dose that required to to produce response D Maximum response a drug can produce High-Yield Explanation Efficacy means effectiveness, i.e. the ability of something, e.g. a medicine, to produce the results you want Ref-KDT 7/e p54