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Old 30 January 2013, 01:33 PM
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damian damian is offline
 
Join Date: 14 April 2005
Location: Melbourne, Australia
Posts: 6,504
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Sorry. A placebo is a pretend medicine. Sometimes it is used in place of "real" medicine because of the "placebo effect" in which a person who believes they are being treated with real medicine may get better, even though they are taking sugar pills or similar.

Every clinical trial has to test a control group, a placebo group and the trial group to get clear evidence that the new medication actually works. It is thought that around 1 in 3 people will feel the effects of fake medicine.
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