Gel Caps filled with Syrian Rue.
Syrian Rue (these are ground up seeds of the plant) contain what is known as MAO-I (Monoamide Oxidase Inhibitors). When administered they inhibit the body from breaking down certain kinds of alkaloids. This in turn makes it possible to ingest substances orally that otherwise would not be active orally since the body acids would break the alkaloids before they reached the bloodstream. This works for making some substances orally active at all but MAO-I’s are also used to enhance and prolong the effects of just about any drug.