Glossary Term:

Title

placebo

Phonetic

pluh-<b>see</b>-bo

Description

an inert, inactive substance or sham procedure that may be used in studies (clinical trials) to compare the effects of a given treatment with no treatment. The pill form is commonly called a “sugar pill.” Placebo can mean a treatment, injection, or even something that looks like real surgery that is used when studying a treatment that is not given by mouth. Placeboes are not used in studies where a proven treatment is available; instead, the new treatment is tested against the proven one.