Agonists: Constructing Dose-Response Curves

Dose-Response Curves And Concentration-Effect Curves

Strictly speaking, a graph where the x-axis shows the concentration of a drug in the organ bath should not be called a dose-response curve. This is because the graph does not show dose, it shows concentration.

What's the difference between dose and concentration?

For this reason, some people refer to dose-response curves as concentration-effect curves: a more accurate description of the graph.
Dose Response Curve

Dose-Response Curve =
Concentration-Effect Curve

You need to be aware of both ways used to refer to the graph. However, the graph is usually referred to as a dose-response curve and this is the term which will be used throughout.