Library methapyrilene Methapyrilene is an antihistamine and anticholinergic of the pyridine chemical class which was developed in the early 1950s. It was sold un…

Library methocarbamol Methocarbamol is a centrally-acting skeletal muscle relaxant with sedative properties used for acute musculoskeletal pain. It should be avo…

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Library methoxyacetylfentanyl Methoxyacetyl-fentanyl is a highly potent synthetic opioid and fentanyl analogue classified as a depressant research chemical. Like other f…

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Library methyl_4hydroxybutanoate

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Library methyldihydromorphine

Library methylenedioxynitazene Methylenedioxynitazene (3',4'-Methylenedioxynitazene) is a benzimidazole derivative which has been sold as a designer drug over the interne…

Library methylmethaqualone Methylmethaqualone is a depressant research chemical and a more potent structural analogue of methaqualone. It is characterized by a compar…

Library methyprylon Sedative of the pipeidinedone family. Was used for treating insomnia, yet is rarely used today due to substances with fewer side effects, s…

Library metizolam Metizolam is a synthetic depressant of the thienotriazolodiazepine class and the demethylated analogue of etizolam. A Japanese company pate…

Library metodesnitazene Metodesnitazene is a benzimidazole derivative with opioid effects, though unlike related compounds such as metonitazene and etodesnitazene…

Library metonitazene Metonitazene is a high-potency synthetic benzimidazole opioid with potency similar to fentanyl (approximately 100 times morphine by central…

Library mexazolam Benzodiazepine derivative that has been trialed for anxiety and was found to be effective for anxiety at one week week follow-ups yet after…

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Library mgm15 Preclinical studies show MGM-15 is approximately 15x (subcutaneous) and 50x (oral) more potent than morphine in rodent models, yet human an…

Library midazolam Midazolam is a short-acting depressant of the benzodiazepine class, specifically an imidazobenzodiazepine. Patented in 1974 and adopted for…

Library mirogabalin Mirogabalin is approved in Japan and several Asian countries for diabetic peripheral neuropathic pain and postherpetic neuralgia. It has hi…

Library mirtazapine At therapeutic doses (7.5-45mg), mirtazapine functions as a sedating antidepressant with appetite-stimulating effects. At higher doses (typ…

Library mitragynine Mitragynine is the primary active alkaloid in kratom (Mitragyna speciosa), accounting for 12-66% of total alkaloid content depending on str…

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Library monotropa_uniflora Fresh aerial tissue turns deep purple in 95% ethanol, signalling extraction of monotropitoside, gaultherin and related methyl-salicylate gl…

Library morpheridine Is a 4-Phenylpiperidine derivative that is related to Pehidine. It is roughly 4x as potent as the parent compound, does not cause convulsio…

Library morphine Morphine is the principal alkaloid of the opium poppy (Papaver somniferum) and the prototypical opioid analgesic. First isolated by Friedri…