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Mansa Musa was the ruler of the Mali Empire in West Africa. Details recorded here should be sourced; unknown information is left blank.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
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| Other names | MLD-41; MLD; N1-Methyl-Lysergic Acid Diethylamide; 1-Methyl-LSD; 1-Methyl-N,N-Diethyllysergamide; Methyl-LSD |
| Routes of administration | Oral[1][2] |
| Drug class | Serotonergic psychedelic; Hallucinogen |
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| CompTox Dashboard (EPA) | |
| Chemical and physical data | |
| Formula | C21H27N3O |
| Molar mass | 337.467 g·mol−1 |
| 3D model (JSmol) | |
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MLD-41, also known as 1-methyl-LSD, is a psychedelic drug of the lysergamide family related to lysergic acid diethylamide (LSD).[1][2] It has about 33% of the psychoactive potency of LSD.[1][2] It has been studied with regard to cross-tolerance with LSD.[3] Extensive metabolism of other 1-methylated lysergamides to their secondary amine derivatives, for instance methysergide (1-methylmethylergometrine) conversion into methylergometrine, has been observed.[4][5]
MLD-41 produces the head-twitch response, a behavioral proxy of psychedelic effects, in rodents, and with only slightly lower potency than LSD.[6]
MLD-41 is not a controlled substance in Canada as of 2025.[7]
Metabolites of methysergide also exhibit pharmacological activity. Methylergometrine (one of methysergide's metabolites) is responsible for methysergide's therapeutic effects regarding migraine treatment (Müller-Schweinitzer and Tapparelli 1986). [...] The systemic availability of methysergide after oral administration is only 13%, due to a high degree of first-pass metabolism by N-1 demethylation to methylergometrine. After oral administration, the plasma concentrations of the metabolite are considerably higher than those of the parent drug, and the area under the plasma concentration curve (AUC) for methylergometrine is more than ten times greater than for methysergide.
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
MLD-41, also known as 1-methyl-LSD, is a psychedelic drug of the lysergamide family related to lysergic acid diethylamide (LSD). It has about 33% of the psychoactive potency of LSD. It has been studied with regard to cross-tolerance with LSD. Extensive metabolism of other 1-methylated lysergamides to their secondary amine derivatives, for instance methysergide (1-methylmethylergometrine) conversion into methylergometrine, has been observed.
Psilocybe semilanceata, commonly known as the liberty cap, is a species of fungus which produces psilocybin, psilocin and baeocystin. It is one of the most widely distributed psilocybin mushrooms in nature. The mushrooms have a distinctive conical to bell-shaped cap, up to 2.5 cm (1 in) in diameter, with a small nipple-like protrusion on the top. They are yellow to brown, covered with radial grooves when moist, and fade to a lighter color as they mature. Their stipes tend to be slender and long, and the same color or slightly lighter than the cap. The gill attachment to the stipe is adnexed (narrowly attached), and they are initially cream-colored before tinting purple to black as the spores mature. The spores are dark purplish-brown en masse, ellipsoid in shape, and measure 10.5–15 by 6.5–8.5 μm. The mushroom grows in grassland habitats, especially wetter areas. Unlike P. cubensis, the fungus does not grow directly on dung; rather, it is a saprobic species that feeds off decaying grass roots. It is widely distributed in the temperate areas of the Northern Hemisphere, particularly in Europe, and has been reported occasionally in temperate areas of the Southern Hemisphere as well. The earliest reliable history of P. semilanceata intoxication dates back to 1799 in London, and in the 1960s the mushroom was the first European species confirmed to contain psilocybin. The possession or sale of psilocybin mushrooms is illegal in many countries.
Lysergic acid diethylamide, commonly known as LSD (from German Lysergsäurediethylamid) and by the nicknames acid and Lucy, is a semisynthetic psychedelic drug derived from ergot, known for its potent psychological effects. LSD taken orally has an onset of action of 0.4 to 1.0 hours and a duration of 7 to 12 hours. In recreational settings it is commonly administered via tabs of blotter paper. LSD is extremely potent, with noticeable effects at doses as low as 20 micrograms and is sometimes taken in even smaller amounts for microdosing. Despite widespread use, no fatal human overdoses have been documented. LSD is mainly used recreationally or for spiritual purposes. LSD can cause mystical experiences. LSD exerts its effects primarily through high-affinity binding to several serotonin receptors, especially the serotonin 5-HT2A receptor, and to a lesser extent dopamine and adrenergic receptors. Neuroimaging studies indicate that LSD reduces the efficacy of thalamo-cortical information filtering (producing sensory overload), decreases oscillatory power within the default mode network, and flattens hierarchical organization of large-brain activity. At higher doses, it can induce visual and auditory hallucinations, ego dissolution, and anxiety. LSD use can cause hallucinogen-induced psychotic disorder where paranoia and delusions persist beyond the initial effects of the drug. LSD may lead to persistent visual disturbances known as hallucinogen persisting perception disorder (HPPD). Swiss chemist Albert Hofmann first synthesized LSD in 1938 and discovered its potent psychedelic effects in 1943 after accidental ingestion. It became widely studied in the 1950s and 1960s. The drug was initially explored for psychiatric use due to its structural similarity to serotonin and safety profile. It was used experimentally in psychiatry for treating alcoholism and schizophrenia. By the mid-1960s, LSD became central to the youth counterculture in places like San Francisco and London, influencing art, music, and social movements through events like Acid Tests and figures such as Timothy Leary, Owsley Stanley and Michael Hollingshead. Its psychedelic effects inspired distinct visual art styles and musical innovations, and caused a lasting cultural impact. However, its association with the counterculture movement of the 1960s led to its classification as a Schedule I drug in the United States in 1970. It was also listed as a Schedule I controlled substance by the United Nations in 1971 and remains without approved medical uses. Despite its legal restrictions, LSD remains influential in scientific and cultural contexts. Research on LSD declined due to cultural controversies by the 1960s, but has resurged since 2009. In 2024, the United States Food and Drug Administration designated LSD (code name MM120 or DT120) as a breakthrough therapy for generalized anxiety disorder. As of 2017, about 10% of people in the United States had used LSD at some point, with 0.7% having used it in the past year. Usage rates have risen, with a 56.4% increase in adult use in the United States from 2015 to 2018.
Psilocybe cubensis, commonly known as the magic mushroom, shroom, golden halo, cube, gold cap, or bluestain smoothcap, is a species of psilocybin mushroom of moderate potency whose principal active compounds are psilocybin and psilocin. It belongs to the fungus family Hymenogastraceae and was previously known as Stropharia cubensis. It is the best-known psilocybin mushroom due to its wide distribution and ease of cultivation.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Shirley Chisholm, elected in 1968.
