active placebo


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pla·ce·bo

(plă-sē'bō),
1. An inert substance given as a medicine for its suggestive effect.
2. An inert compound identical in appearance to material being tested in experimental research, which may or may not be known to the physician or patient, administered to distinguish between drug action and suggestive effect of the material under study.
Synonym(s): active placebo
[L. I will please, future of placeo]
Farlex Partner Medical Dictionary © Farlex 2012
A placebo with side effects similar to those of a therapeutic agent—administered in the context of a therapeutic trial, which would otherwise allow a patient to identify whether he/she is receiving drug or placebo—e.g., dry mouth with chlorpromazine
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

active placebo

Statistics A placebo with side effects similar to those of a therapeutic agent which would otherwise allow a Pt to identify whether he is receiving drug or placebo–eg, dry mouth is associated with chlorpromazine. See Placebo.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

pla·ce·bo

(plă-sē'bō)
Inert substance given as a medicine for its suggestive effect.
Synonym(s): active placebo.
[L. I will please, future of placeo]
Medical Dictionary for the Dental Professions © Farlex 2012
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