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2,5-Dimethoxy-4-iodoamphetamine
2,5-Dimethoxy-4-iodoamphetamine (DOI) is a psychedelic drug of the amphetamine and 4-substituted-2,5-dimethoxyamphetamine (DOx) families. It is relatively little-used as a recreational drug but is frequently used in scientific research in the study of psychedelics and serotonin receptors. DOI acts as a potent serotonin 5-HT2 receptor agonist, including of the serotonin 5-HT2A and 5-HT2C receptors. The compound has a stereocenter, and ''R''-(−)-DOI is the more active stereoisomer. 125I">sup>125I''R''-(−)-DOI is used as a radioligand and indicator of the presence of serotonin 5-HT2A receptors in studies. DOI's effects have been compared to LSD, although there are differences that experienced users can distinguish. Besides the longer duration of DOI compared to LSD, the trip tends to be more energetic than an LSD trip, with more body load and a different subjective visual experience. The after effects include residual stimulation and difficulty sleeping, which, dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5-HT2A Receptor
The 5-HT2A receptor is a subtype of the 5-HT2 receptor, 5-HT2 receptor that belongs to the serotonin receptor family and functions as a GPCR, G protein-coupled receptor (GPCR). It is a cell surface receptor that activates multiple intracellular signalling cascades. Like all 5-HT2 receptors, the 5-HT2A receptor is coupled to the Gq protein, Gq/G11 signaling pathway. It is the primary excitatory receptor subtype among the serotonin-responsive GPCRs. The 5-HT2A receptor was initially noted for its central role as the primary target of serotonergic psychedelic drugs such as LSD and psilocybin mushrooms. It later regained research prominence when found to mediate, at least in part, the effects of many antipsychotic drugs, particularly atypical antipsychotic, atypical antipsychotics. Downregulation of post-synaptic 5-HT2A receptors is an adaptive response triggered by chronic administration of selective serotonin reuptake inhibitors (SSRIs) and atypical antipsychotics. Elevated 5-HT2A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4-substituted-2,5-dimethoxyamphetamine
4-Substituted-2,5-dimethoxyamphetamines (DO''x'') is a chemical class of Substitution reaction, substituted amphetamine derivative (chemistry), derivatives featuring methoxy functional group, groups at the 2- and 5- positions of the phenyl simple aromatic ring, ring, and a substituent such as alkyl or halogen at the 4- position of the phenyl ring. They are 4-substituted derivatives of 2,5-dimethoxyamphetamine (2,5-DMA, DOH) and are structural analog, structurally related to the natural product, naturally occurring phenethylamine psychedelic mescaline. The most well-known DOx drugs are 2,5-dimethoxy-4-methylamphetamine, DOM, 2,5-dimethoxy-4-iodoamphetamine, DOI, 2,5-dimethoxy-4-bromoamphetamine, DOB, 2,5-dimethoxy-4-ethylamphetamine, DOET, and 2,5-dimethoxy-4-chloroamphetamine, DOC. DOI is widely used in scientific research. DOM has been used as a recreational drug, while DOET was an experimental drug, experimental pharmaceutical drug. Most compounds of this class are potency (p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
125I
Iodine-125 (125I) is a radioisotope of iodine which has uses in biological assays, nuclear medicine imaging and in radiation therapy as brachytherapy to treat a number of conditions, including prostate cancer, uveal melanomas, and brain tumors. It is the second longest-lived radioisotope of iodine, after iodine-129. Its half-life is 59.392 days and it decays by electron capture to an excited state of tellurium-125. This state is not the metastable 125mTe, but rather a lower energy state. The excited 125Te may (7% chance) undergo gamma decay with a maximum energy of 35 keV. More often (93% chance), the excited 125Te undergoes internally conversion and ejects an electron (< 35 keV). The resulting electron vacancy leads to emission of characteristic X-rays (27–32 keV) and a total of 21 Au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substituted Amphetamine
Substituted amphetamines, or simply amphetamines, are a chemical class, class of compounds based upon the amphetamine structure; it includes all derivative (chemistry), derivative compounds which are formed by replacing, or substitution reaction, substituting, one or more hydrogen atoms in the amphetamine core structure with substituents. The compounds in this class span a variety of pharmacological subclasses, including stimulants, Empathogen-entactogen, empathogens, and hallucinogens, among others. Examples of substituted amphetamines are amphetamine (itself), methamphetamine, ephedrine, cathinone, phentermine, mephentermine, tranylcypromine, bupropion, methoxyphenamine, selegiline, amfepramone, amfepramone (diethylpropion), pyrovalerone, MDMA (ecstasy), and 2,5-dimethoxy-4-methylamphetamine, DOM (STP). Some of amphetamine's substituted Derivative (chemistry), derivatives occur in nature, for example in the leaves of ''Ephedra (genus), Ephedra'' and khat plants. Amphetamine w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5-HT2C Receptor
The 5-HT2C receptor is a subtype of the 5-HT2 receptor that binds the endogenous neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). Like all 5-HT2 receptors, it is a G protein-coupled receptor (GPCR) that is coupled to Gq/G11 and mediates excitatory neurotransmission. ''HTR2C'' denotes the human gene encoding for the receptor, that in humans is located on the X chromosome. As males have one copy of the gene and females have one of the two copies of the gene repressed, polymorphisms at this receptor can affect the two sexes to differing extent. Structure At the cell surface the receptor exists as a homodimer. The crystal structure has been known since 2018. Distribution 5-HT2C receptors are located mainly in the choroid plexus, and in rats is also found in many other brain regions in high concentrations, including parts of the hippocampus, anterior olfactory nucleus, substantia nigra, several brainstem nuclei, amygdala, subthalamic nucleus and lateral habenula. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Structure
A chemical structure of a molecule is a spatial arrangement of its atoms and their chemical bonds. Its determination includes a chemist's specifying the molecular geometry and, when feasible and necessary, the electronic structure of the target molecule or other solid. Molecular geometry refers to the spatial arrangement of atoms in a molecule and the chemical bonds that hold the atoms together and can be represented using structural formulae and by molecular models; complete electronic structure descriptions include specifying the occupation of a molecule's molecular orbitals. Structure determination can be applied to a range of targets from very simple molecules (e.g., diatomic oxygen or nitrogen) to very complex ones (e.g., such as protein or DNA). Background Theories of chemical structure were first developed by August Kekulé, Archibald Scott Couper, and Aleksandr Butlerov, among others, from about 1858. These theories were first to state that chemical compounds are not a ran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drug Safety
Pharmacovigilance (PV, or PhV), also known as drug safety, is the pharmaceutical science relating to the "collection, detection, assessment, monitoring, and prevention" of adverse effects with pharmaceutical products. The etymological roots for the word "pharmacovigilance" are: (Greek for drug) and (Latin for to keep watch). As such, pharmacovigilance heavily focuses on adverse drug reactions (ADR), which are defined as any response to a drug which is noxious and unintended. That definition includes lack of efficacy: that means that the doses normally used for prevention, diagnosis, or treatment of a disease—or, especially in the case of device, for the modification of physiological disorder function. In 2010, the European Union expanded PV to include medication errors such as overdose, misuse, and abuse of a drug as well as drug exposure during pregnancy and breastfeeding. These are monitored even in the absence of an adverse event, because they may result in an adver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Difficulty Sleeping
Insomnia, also known as sleeplessness, is a sleep disorder where people have difficulty sleeping. They may have difficulty falling asleep, or staying asleep for as long as desired. Insomnia is typically followed by daytime sleepiness, low energy, irritability, and a depressed mood. It may result in an increased risk of accidents of all kinds as well as problems focusing and learning. Insomnia can be short term, lasting for days or weeks, or long term, lasting more than a month. The concept of the word ''insomnia'' has two distinct possibilities: insomnia disorder (ID) or insomnia symptoms, and many abstracts of randomized controlled trials and systematic reviews often underreport on which of these two possibilities the word refers to. Insomnia can occur independently or as a result of another problem. Conditions that can result in insomnia include psychological stress, chronic pain, heart failure, hyperthyroidism, heartburn, restless leg syndrome, menopause, certain medicati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychostimulant
Stimulants (also known as central nervous system stimulants, or psychostimulants, or colloquially as uppers) are a class of drugs that increase alertness. They are used for various purposes, such as enhancing attention, motivation, cognition, mood, and physical performance. Some stimulants occur naturally, while others are exclusively synthetic. Common stimulants include caffeine, nicotine, amphetamines, cocaine, methylphenidate, and modafinil. Stimulants may be subject to varying forms of regulation, or outright prohibition, depending on jurisdiction. Stimulants increase activity in the sympathetic nervous system, either directly or indirectly. Prototypical stimulants increase synaptic concentrations of excitatory neurotransmitters, particularly norepinephrine and dopamine (e.g., methylphenidate). Other stimulants work by binding to the receptors of excitatory neurotransmitters (e.g., nicotine) or by blocking the activity of endogenous agents that promote sleep (e.g., ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Body Load
Body load is the specific physical or tactile sensations brought on by psychoactive drugs, especially psychedelics. Generally, body load is an unpleasant physical sensation that is difficult to describe objectively either in terms of other sensations or in its specific location. However, it could be likened to an instinct of the body sensing it is about to be placed under exceptional stress, a state of pre-shock. Common symptoms include stomach ache, nausea, dizziness, feelings of being over-stimulated or "wired," shivering, feelings of excessive tension in the torso, or, in more severe cases, shortness of breath or a feeling of suffocation. Different drugs may cause different body load sensations which vary in intensity and duration. In contrast, many drug users, and particularly users of cannabis, entactogens like MDMA or of certain synthetic phenethylamines (most notably the popular 2C-B) and tryptamines, also often report a "body high" or "body rush", which is similar to body ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mental Energy
Mental energy may be understood as the ability or willingness to engage in cognitive work. It is distinct from physical energy, and has mood (psychology), mood, cognition, and motivation domains. Concepts closely related to mental energy include vigor and fatigue (medical), fatigue. Mental energy is not well-defined, and the scientific literature on mental energy is quite limited. The philosopher and psychologist Karl F. Stifter wrote a dissertation on the "Philosophy of Mental Energy". In the Austrian Broadcasting Corporation's TV show "Vera", Stifter lifted 1000 kg with a lifting belt over his sacrum to prove that drastic increases in muscle strength can be achieved after special mental training. ORF, TV-show �V''era''“ 05.06.2003 A variety of measures for assessing aspects of mental energy exist. Many people complain of low mental energy, which can interfere with work and daily activities. Low mental energy and fatigue are major public health concerns. People may pursue r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duration Of Action
Pharmacodynamics (PD) is the study of the biochemical and physiologic effects of drugs (especially pharmaceutical drugs). The effects can include those manifested within animals (including humans), microorganisms, or combinations of organisms (for example, infection). Pharmacodynamics and pharmacokinetics are the main branches of pharmacology, being itself a topic of biology interested in the study of the interactions of both endogenous and exogenous chemical substances with living organisms. In particular, pharmacodynamics is the study of how a drug affects an organism, whereas pharmacokinetics is the study of how the organism affects the drug. Both together influence dosing, benefit, and adverse effects. Pharmacodynamics is sometimes abbreviated as PD and pharmacokinetics as PK, especially in combined reference (for example, when speaking of PK/PD models). Pharmacodynamics places particular emphasis on dose–response relationships, that is, the relationships between drug con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
