A ______________ consists of a substance identical in appearance to a drug but physiologically inert.
A) drug
B) placebo
C) teratogen
D) control group

Question

Quizplus · Accepted Answer

A placebo is a substance that is designed to look like a drug but has no active ingredients. It is used in studies as a control to compare the effects of a drug to the effects of the placebo. The use of a placebo is important to determine if the drug has a significant effect, or if the observed effects are due to other factors such as the patient's belief in the treatment.

A ______________ Consists of a Substance Identical in Appearance to a Drug