4-Fluoroamphetamine, also known as para-fluoroamphetamine (PFA) is a psychoactive research chemical of the phenethylamine and substituted amphetamine chemical classes. It produces stimulant and entactogenic effects. As a recreational drug, 4-FA is sometimes sold along with related compounds such as 2-fluoroamphetamine and 4-fluoromethamphetamine.
Betahydroxythiofentanyl (β-hydroxythiofentanyl) is an opioid analgesic that is an analog of fentanyl. Beginning as early as 2008, clandestine labs in China began to manufacture synthetic opioids on an industrial scale. Initially, these opioids were distributed in Eastern European markets such as Ukraine and Estonia. Beginning in 2015, fentanyl had replaced heroin as the opioid of choice due to its cheap cost of production and astronomical potency. Utilizing loosely regulated drug laws in the ports of western Mexico, Mexican and Chinese criminal organizations began to traffic the drug en masse along the U.S.-Mexico border.
Ethcathinone, also known as ethylpropion or ETH-CAT, is a stimulant drug of the phenethylamine, amphetamine, and cathinone chemical classes. It is an active metabolite of the prodrug diethylcathinone and is fully responsible for its effects. Ethcathinone has been identified as an ingredient in both quasi-legal "party pills", and, along with mephedrone, has also been reported as having been sold as "ecstasy" in the Australian city of Cairns.
Flephedrone, also known as 4-fluoromethcathinone (4-FMC), is a stimulant drug of the cathinone chemical class that has been sold online as a designer drug starting in 2008.
α-Pyrrolidinopentiophenone is a synthetic stimulant of the cathinone class developed in the 1960s that has been sold as a designer drug. Colloquially, it is sometimes called flakka. α-PVP is chemically related to pyrovalerone and is the ketone analog of prolintane.
3-Fluoroamphetamine is a stimulant drug from the amphetamine family which acts as a monoamine releaser with similar potency to methamphetamine but more selectivity for dopamine and norepinephrine release over serotonin. It is self-administered by mice to a similar extent to related drugs such as 4-fluoroamphetamine and 3-methylamphetamine.
2-Fluoroamphetamine (2-FA) is a stimulant drug from the amphetamine family which has been sold as a designer drug. 2-Fluoroamphetamine differs from 3- and 4-fluoroamphetamine in the position of the fluorine atom on the aromatic ring, making them positional isomers of one another. The replacement of a hydrogen atom with a fluorine atom in certain compounds to facilitate passage through the blood–brain barrier, as is desirable in central nervous system pharmaceutical agents, is a common practice due to the corresponding increase in lipophilicity granted by this substitution.
2-Fluoromethamphetamine (2-FMA) is a stimulant drug of the amphetamine family which has been used as a designer drug. 2-FMA is commonly compared to lisdexamfetamine (Vyvanse), and dextroamphetamine due to its efficacy as a study or productivity aid. 2-FMA is purported to produce somewhat less euphoria than comparable amphetamines, likely due to its main mechanism of action consisting of norepinephrine reuptake inhibition.
JWH-122 is a synthetic cannabimimetic that was discovered by John W. Huffman. It is a methylated analogue of JWH-018. It has a Ki of 0.69 nM at CB1 and 1.2 nM at CB2.
AH-7921 is an opioid analgesic drug selective for the μ-opioid receptor, having around 90% the potency of morphine when administered orally. It was discovered in the 1970s by a team at Allen and Hanburys located in the United Kingdom. The drug is considered a new psychoactive substance (NPS) in which it is synthetically created in laboratories to mimic that of controlled substances. The substance has also been sold on the internet since 2012 as a "research chemical". When sold online it may be called the alternative name doxylam, not to be confused with doxylamine. AH-7921 has never progressed to clinical trials. The DEA is not aware of any medical usage in the United States, and has not insisted the Health and Human Services department (HHS) to conduct any medical research of the substance's uses.
25C-NBOMe is a psychedelic drug and derivative of the psychedelic phenethylamine 2C-C. 25C-NBOMe appeared on online vendor sites in 2010 but was not reported in the literature until 2011. It acts as a potent agonist of the 5HT2A receptor, and has been studied in its 11C radiolabelled form as a potential ligand for mapping the distribution of 5-HT2A receptors in the brain, using positron emission tomography (PET). Multiple deaths have occurred from usage of 25C-NBOMe due to the ease of accidental overdose. The long-term toxic effects of the drug have not been researched.
Pentedrone is a stimulant of the cathinone class that has been sold as a designer drug and has been found since 2010 as an ingredient in a number of "bath salt" mixes sold as legal highs.
EAM-2201 is a drug that presumably acts as a potent agonist for the cannabinoid receptors. It had never previously been reported in the scientific or patent literature, and was first identified by laboratories in Japan in July 2012 as an ingredient in synthetic cannabis smoking blends Like the closely related MAM-2201 which had been first reported around a year earlier, EAM-2201 thus appears to be another novel compound invented by designer drug suppliers specifically for recreational use. Structurally, EAM-2201 is a hybrid of two known cannabinoid compounds JWH-210 and AM-2201, both of which had previously been used as active ingredients in synthetic cannabis blends before being banned in many countries.
3-Fluoromethamphetamine (3-FMA) is a stimulant drug related to methamphetamine and 3-fluoroamphetamine. It has been sold online as a designer drug.
25D-NBOMe is a derivative of the phenethylamine derived hallucinogen 2C-D. It acts in a similar manner to related compounds such as 25I-NBOMe, which is a potent agonist at the 5HT2A receptor. 25D-NBOMe has been sold as a street drug since 2010 and produces similar effects in humans to related compounds such as 25I-NBOMe and 25C-NBOMe. It was banned as a Temporary Class Drug in the UK on 10 June 2013 after concerns about its recreational use.
Acetylfentanyl is an opioid analgesic drug that is an analog of fentanyl. Studies have estimated acetylfentanyl to be fifteen times more potent than morphine, which would mean that despite being somewhat weaker than fentanyl, it is nevertheless still several times stronger than pure heroin. It has never been licensed for medical use and instead has only been sold as a designer drug. Acetylfentanyl was discovered at the same time as fentanyl itself and had only rarely been encountered on the illicit market in the late 1980s. However, in 2013, Canadian police seized 3 kilograms of acetylfentanyl. As a μ-opioid receptor agonist, acetylfentanyl may serve as a direct substitute for heroin or other opioids. Common side effects of fentanyl analogs are similar to those of fentanyl itself, which include itching, nausea and potentially serious respiratory depression, which can be life-threatening. Fentanyl analogs have killed hundreds of people throughout Europe and the former Soviet republics since the most recent resurgence in use began in Estonia in the early 2000s, and novel derivatives continue to appear.
5F-AMB (also known as 5F-MMB-PINACA and 5F-AMB-PINACA) is an indazole-based synthetic cannabinoid from the indazole-3-carboxamide family, which has been used as an active ingredient in synthetic cannabis products. It was first identified in Japan in early 2014. Although only very little pharmacological information about 5F-AMB itself exists, its 4-cyanobutyl analogue (instead of 5-fluoropentyl) has been reported to be a potent agonist for the CB1 receptor (KI = 0.7 nM).
5F-APINACA is an indazole-based synthetic cannabinoid that has been sold online as a designer drug. Structurally it closely resembles cannabinoid compounds from patent WO 2003/035005 but with a 5-fluoropentyl chain on the indazole 1-position, and 5F-APINACA falls within the claims of this patent, as despite not being disclosed as an example, it is very similar to the corresponding pentanenitrile and 4-chlorobutyl compounds which are claimed as examples 3 and 4.
4-Chloromethcathinone is a stimulant drug of the cathinone class that has been sold online as a designer drug.
3-Chloromethcathinone is a stimulant drug of the cathinone class that has been sold online as a designer drug, mainly in European countries such as Ireland, Italy, Poland and Sweden.
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