Placebo
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Overview
placebo /pla·ce·bo/ (plah-se´bo) [L.]
any dummy medical treatment; originally, a medicinal preparation having no specific pharmacological activity against the patient's illness or complaint given solely for the psychophysiological effects of the treatment; more recently, a dummy treatment administered to the control group in a controlled clinical trial in order that the specific and nonspecific effects of the experimental treatment can be distinguished.
Dorland's Medical Dictionary for Health Consumers. © 2007 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
pla·ce·bo (pl-sb) n. pl. pla·ce·bos or pla·ce·boes
1. A substance containing no medication and prescribed or given to reinforce a patient's expectation to get well.
2. An inactive substance or preparation used as a control in an experiment or test to determine the effectiveness of a medicinal drug.
The American Heritage® Stedman's Medical Dictionary, 2nd Edition Copyright © 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References
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