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A drug test (also often toxicology screen or tox screen) is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, or oral fluid/saliva—to determine the presence or absence of specified parent drugs or their metabolites.
In most countries, the drug is a controlled substance and its possession and sale are illegal. MDA is rarely sought as a recreational drug compared to other amphetamines; however, it remains widely used due to it being a primary metabolite, [3] the product of hepatic N-dealkylation, [4] of MDMA. It is also a common adulterant of illicitly ...
Methamphetamine [note 1] (contracted from N-methylamphetamine) is a potent central nervous system (CNS) stimulant that is mainly used as a recreational or performance-enhancing drug and less commonly as a second-line treatment for attention deficit hyperactivity disorder (ADHD). [23]
The US Food and Drug Administration approved a novel tool Tuesday that uses genetic testing to help assess whether certain people are at risk of developing opioid use disorder.
Some drug abuse screening programs rely on hair, saliva, or sweat as specimens. Most commercial amphetamine immunoassay screening tests cross-react significantly with MDMA or its major metabolites, but chromatographic techniques can easily distinguish and separately measure each of these substances.
Simon's reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It reacts with secondary amines like MDMA and methamphetamine to give a blue solution. Uses
Most people who take a drug test take a presumptive test, cheaper and faster than other methods of testing. However, it is less accurate and can render false results. The FDA recommends for confirmatory testing to be conducted and the placing of a warning label on the presumptive drug test: "This assay provides only a preliminary result.
The Food and Drug Administration on Monday approved Guardant Health’s blood test, called Shield, to screen for colon cancer. The Food and Drug Administration on Monday approved Guardant Health ...
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