A placebo is a simulated or otherwise medically ineffectual treatment for a disease or other condition intended to deceive the recipients. sometimes patients given a placebo treatment will have a perceived or actual improvement in a medical condition, a phenomenon commonly called the placebo effect.
in the medical research, placebos are given as control treatments and depend on the use of measured deception. Placebos are mostly using to replace painkiller or depression treatment.
i believe using placebos are totally ethical. on the way it is good for the patients, if the placebos are working well on them, they will avoid any side affect from the real pain pills.
it is important to note that " deception is not a necessary part of the placebo effect, doctor can tell people that the treatment might benefit them and that is not a lie" doctors are doing that to benefit this society.
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