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Placebo pill

Placebo pill

M625/1062

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Credit

DAVID PARKER / SCIENCE PHOTO LIBRARY DAVID PARKER / SCIENCE PHOTO LIBRARY

Caption

Placebo pill. This tablet does not contain any pharmacologically-active substance. It is used in clinical trials of drugs to test the effectiveness of a drug against that of a placebo. A placebo response can occur when patients believe that the placebo pill will make them better. This response, an improvement in the patient's condition, results from the psychological impact of the belief that they are being treated.

Release details

Model release not required. Property release not required.

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