MEM (psychedelic)
Encyclopedia
2,5-Dimethoxy-4-ethoxyamphetamine (MEM) is a psychedelic
Psychedelic drug
A psychedelic substance is a psychoactive drug whose primary action is to alter cognition and perception. Psychedelics are part of a wider class of psychoactive drugs known as hallucinogens, a class that also includes related substances such as dissociatives and deliriants...

 drug
Drug
A drug, broadly speaking, is any substance that, when absorbed into the body of a living organism, alters normal bodily function. There is no single, precise definition, as there are different meanings in drug control law, government regulations, medicine, and colloquial usage.In pharmacology, a...

 of the phenethylamine
Substituted phenethylamine
The substituted phenethylamines are chemical compounds with the 2-phenethylamine chemical structure modified at the phenyl ring, sidechain, and/or amino group. Some of them are psychoactive drugs, including stimulants, psychedelics, opioids, and entactogens, which exert their effects primarily...

 and amphetamine
Substituted amphetamine
Substituted amphetamines are a chemical class of stimulants, entactogens, hallucinogens, and other drugs. They feature a phenethylamine core with a methyl group attached to the alpha carbon resulting in amphetamine, along with additional substitutions...

 chemical classes. It was first synthesized
Organic synthesis
Organic synthesis is a special branch of chemical synthesis and is concerned with the construction of organic compounds via organic reactions. Organic molecules can often contain a higher level of complexity compared to purely inorganic compounds, so the synthesis of organic compounds has...

 by Alexander Shulgin
Alexander Shulgin
Alexander "Sasha" Theodore Shulgin is an American pharmacologist, chemist, artist, and drug developer.Shulgin is credited with the popularization of MDMA, commonly known as ecstasy, in the late 1970s and early 1980s, especially for psychopharmaceutical use and the treatment of depression and...

. In his book PiHKAL
PiHKAL
PiHKAL: A Chemical Love Story is a book by Dr. Alexander Shulgin and Ann Shulgin which was published in 1991. The subject of the work is psychoactive phenethylamine chemical derivatives, notably those that act as psychedelics and/or empathogen-entactogens...

, he lists the active dose range as 20–50 mg, and the duration as 10–14 hours. According to Shulgin, MEM produces color enhancement, visual phenomena, and pattern movement, among other effects.

MEM possesses affinity (Ki) for the 5-HT2A
5-HT2A receptor
The mammalian 5-HT2A receptor is a subtype of the 5-HT2 receptor that belongs to the serotonin receptor family and is a G protein-coupled receptor . This is the main excitatory receptor subtype among the GPCRs for serotonin , although 5-HT2A may also have an inhibitory effect on certain areas such...

 (3,948 nM), 5-HT2B
5-HT2B receptor
5-hydroxytryptamine receptor 2B, also known as HTR2B, is a 5-HT2 receptor, but also denotes the human gene encoding it.-Function:...

 (64.5 nM), 5-HT7
5-HT7 receptor
The 5-HT7 receptor is a member of the GPCR superfamily of cell surface receptors and is activated by the neurotransmitter serotonin The 5-HT7 receptor is coupled to Gs and is expressed in a variety of human tissues, particularly in the brain, the gastrointestinal tract, and in various...

 (7,156 nM), and σ1
Sigma-1 receptor
The sigma-1 receptor is a chaperone protein at the endoplasmatic reticulum that modulates calcium signaling through the IP3 receptor. In humans, the sigma-1 receptor is encoded by the SIGMAR1 gene....

 (5,077 nM) receptor
Receptor (biochemistry)
In biochemistry, a receptor is a molecule found on the surface of a cell, which receives specific chemical signals from neighbouring cells or the wider environment within an organism...

s. It behaves as a partial agonist
Partial agonist
Partial agonists bind and activate a given receptor, but have only partial efficacy at the receptor relative to a full agonist...

 at the 5-HT2A receptor. MEM is relatively selective
Binding selectivity
Binding selectivity refers to the differing affinities with which different ligands bind to a substrate forming a complex. A selectivity coefficient is the equilibrium constant for the reaction of displacement by one ligand of another ligand in a complex with the substrate...

for these sites and displays low/negligible (> 10,000 nM) affinity for a wide array of other targets.

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