It still remains that if you know of the possibility the Placebo effect is is attenuated. Then the doctor can not rule out anything.
Besides if the language you propose is the language, I envision no one picking item 1

Quote Originally Posted by SadisticNature View Post
When you sign up for your physician you sign one of two statements that they attach to the record.

1. When the physician feels the best course of action is a placebo they can prescribe it without telling me.

2. I do not want the physician to prescribe me placebo's regardless of circumstances.

If you sign 1. it is still the case that the vast majority of the time you get real medicine not placebo's, so you would not need to be suspicious of placebo's.