Types of Substances (Drugs)
There are literally dozens of different types of substances (drugs) that people abuse. These drugs have varying effects on behavior and manifest themselves in a host of symptoms. Substances fall into several categories, such as uppers vs. downers and street vs. prescription. It is possible to detect nearly any substance with a drug test. However, not all drug tests are the same. Each test is set up to look for a certain set of drugs. The drug in question must be included in the testing panel for it to be detected by the screening.