Answer: Derbisol

The problem every survey administrator faces is how to assess the authenticity of the responses. When it comes to surveying young adults and teenagers it becomes even more difficult as the respondents will often answer facetiously and not take the survey seriously. When it comes to assessing drug use and abuse, researchers include fictional drugs to weed out respondents who are simply taking a done-it-all approach to answering the questions. The most common fake drug used is called Derbisol (or a variation like Derbs or DB). Other less commonly used fake drugs include metabene, shimeron, and nazuphan–all drug names with no relation to any real substance of abuse.