
Most types of drug tests fail to detect alcohol abuse – the most commonly abused substance among Americans – and are most likely to detect marijuana use since the active ingredient in marijuana stays in the body’s system longer than any other illicit substance. Therefore, drug tests often fail to identify people who are using more powerful, more addictive and more dangerous drugs like methamphetamine or cocaine, which exit the body’s system in a matter of hours or days. If you really want to deal with the problem of addiction, provide treatment on demand," Wexler offered.