The term 'fake pill' can be summarized as a PLACEBO, which is a pill or other medical treatment that has no active ingredients and is used to test the effectiveness of a drug or treatment. Placebos are commonly used in clinical trials to compare the effects of a drug or treatment to those of a control group. Placebos are also sometimes used in medical practice to treat certain conditions, such as anxiety or depression, where the patient's belief in the treatment is thought to be beneficial.