Placebo
A placebo was a substance containing no medication which was administered to reinforce a patient's expectation to get well or, alternatively, used in medical experiments as a control measure.

In 2153, Dr. Phlox gave Commander Tucker a placebo after he wouldn't try Vulcan neuro-pressure therapy. It seemed to work until T'Pol told Tucker the truth. ()

Every flu season on the , Neelix became convinced that he had Toluncan ague. Rather than arguing with him, The Doctor would simply give him a placebo. ()

See also
 Happiness pill

External link
 

de:Placebo
Drugs