Comparison of Dose-Response Curves for Drugs X, Y, and Z

Comparison of Dose-Response Curves for Drugs X, Y, and Z

Drug X has greater biologic activity per dosing equivalent and is thus more potent than drug Y or Z. Drugs X and Z have equal efficacy, indicated by their maximal attainable response (ceiling effect). Drug Y is more potent than drug Z, but its maximal efficacy is lower.