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Overview Methionine is an essential sulfur-containing amino acid that cannot be synthesized by the human body and must be obtained from the diet. It is...

Overview Methamphetamine is a highly addictive synthetic stimulant that acts on the central nervous system and is chemically related to amphetamine, but with more potent...

Overview Methamphetamine is described in the document as a highly addictive psychostimulant drug known by numerous street names such as Speed, Crank, Ice, Chalk, Gak...

Overview Metanephrine refers to the inactive metabolites of catecholamines, specifically epinephrine and norepinephrine, formed by the action of catechol O-methyltransferase within chromaffin cells. These metabolites...

Overview Mescaline, also known as 3,4,5-trimethoxyphenethylamine, is one of the oldest known hallucinogens, used for more than 5,000 years. It is a naturally occurring psychedelic...