<prompt> Regarding efficacy and potency of a drug, all are true, EXCEPT:In a clinical setup, efficacy is more impoant than potencyIn the log dose response curve, the height of the curve corresponds with efficacyED50 of the drug corresponds to efficacyDrugs that produce a similar pharmacological effect can have different levels of efficacy  <response>: ED50 refers to Effective Dose of a drug needed to produce a paicular response in 50 of population. It is a quantitative measure of the potency of a drug. Smaller the ED50 value, more potent is the drug. Ref : K.D TRIPATHI 8th ed 