List of Drugs Tested in Laboratories


Federally mandated SAMHSA/DOT 5 drug panels identify amphetamines, cocaine, marijuana, codeine/morphine and phencyclidines, which includes legal prescription drugs.

Employment drug and alcohol testing may identify drugs such as:

Most drugs stay in the system for 2-4 days. For chronic users of certain drugs, such as marijuana or PCP, results can be detected for up to 14 days or longer. Sedatives may stay in the system for up to 30 days. When follicle hair testing is used, drugs can be detected for up to a 90-day period, although it takes 7 days for drugs to show up in hair follicles.

For more information on individual drugs visit SAMHSA’s web page Publications, Facts, and Multimedia by Drug Type or see our Drug Chart.