2.7.2. Placebo preparation and administration.
The placebo granules, which were mainly composed of dextrin and caramel, were made in a similar color and shape to EZTG. The placebo granules have no active ingredients and therefore have no efficacy. The method of administration was the same as the EZTG. Both the EZTG and placebo production will be consistent with the Chinese Medicine Standards of the State Food and Drug Administration.