<prompt> Regarding efficacy and potency of a drug, all are true EXCEPT:In a clinical setup, efficacy is more important than potencyIn the log dose response curve, the height of the curve corresponds with efficacyED50 of the drug corresponds to the efficacyDrugs that produce a similar pharmacological effect can have different levels of efficacy  <response>: Ans. C. ED50 of the drug corresponds to the efficacyED5 corresponds to the potency of the drugED50 is the dose required to produce desired effect in 50 of individuals. Dose is related to potency not efficacyLD50 is the dose required to produce death in 50 of individualsTherapeutic index TI: ED50 LD50 It is a measure of safety of a drug. 