Source for the second Paragraph? edit

Does anyone have a reference for the second paragraph? It raises an important point which is not thoroughly developed in all pharmacology texts, so I think a reference is warranted.Puddin'head Wilson (talk) 23:22, 8 December 2009 (UTC)Reply

New graph? edit

It is stated that the graph is wrong. Take it down and/or replace it? —Preceding unsigned comment added by 130.88.53.159 (talk) 14:01, 18 May 2010 (UTC)Reply

To do: clarify the difference between intrinsic activity and efficacy edit

Jamgoodman (talk) 14:33, 20 May 2019 (UTC)Reply