Psychoactive drug

psychoactivepsychotropicdrugdrugspsychoactive drugspsychotropic drugspsychoactive substancespsychotropic drugpsychotropic medicationpsychoactive substance
[[File:Psychoactive_Drugs_Legend.jpg|thumb|right|300px|An assortment of psychoactive drugs—street drugs and medications: 1.wikipedia
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Recreational drug use

recreational drugdrug usedrugs
These substances may be used medically; recreationally; to purposefully improve performance or alter one's consciousness; as entheogens; for ritual, spiritual, or shamanic purposes; or for research.
Recreational drug use is the use of a psychoactive drug to induce an altered state of consciousness for pleasure, by modifying the perceptions, feelings, and emotions of the user.

Entheogen

entheogensentheogenicspiritual
These substances may be used medically; recreationally; to purposefully improve performance or alter one's consciousness; as entheogens; for ritual, spiritual, or shamanic purposes; or for research.
An entheogen is a class of psychoactive substances that induce any type of spiritual experience aimed at development.

Drug rehabilitation

rehabrehabilitationdrug rehab
Drug rehabilitation attempts to reduce addiction, through a combination of psychotherapy, support groups, and other psychoactive substances.
Drug rehabilitation is the process of medical or psychotherapeutic treatment for dependency on psychoactive substances such as alcohol, prescription drugs, and street drugs such as marijuana, cocaine, heroin or amphetamines.

Salvia divinorum

salviamagic mintQuid-chewing
This is especially true of certain deliriants (e.g. Jimson weed), powerful dissociatives (e.g. Salvia divinorum), and classic psychedelics (e.g. LSD, psilocybin), in the form of a "bad trip".
Salvia divinorum (also known as sage of the diviners, ska maría pastora, seer's sage, yerba de la pastora or simply salvia) is a plant species with transient psychoactive properties when its leaves are consumed by chewing, smoking or as a tea.

Cannabis (drug)

marijuanacannabispot
Popular campaigns to allow certain recreational drug use (e.g. cannabis) are also ongoing.
Cannabis, also known as marijuana among other names, is a psychoactive drug from the Cannabis plant used for medical or recreational purposes.

Bad trip

bad LSD tripbad acid tripbad-trip
This is especially true of certain deliriants (e.g. Jimson weed), powerful dissociatives (e.g. Salvia divinorum), and classic psychedelics (e.g. LSD, psilocybin), in the form of a "bad trip".
A bad trip (drug-induced temporary psychosis, psychedelic crisis, or emergence phenomenon) is a frightening and unpleasant experience triggered by psychoactive drugs, especially psychedelic drugs such as LSD and magic mushrooms.

Caffeine

caffeinatedcaffeine pillscaffeine withdrawal
Caffeine is the world's most widely consumed psychoactive substance, but unlike many others, it is legal and unregulated in nearly all jurisdictions. Examples: amphetamine, caffeine, cocaine, nicotine
It is the world's most widely consumed psychoactive drug.

MDMA

ecstasymethylenedioxymethamphetamineE
Example: MDMA (Ecstasy), MDA, 6-APB, AMP
3,4-Methylenedioxymethamphetamine (MDMA), commonly known as ecstasy (E), is a psychoactive drug primarily used as a recreational drug.

Anxiolytic

anti-anxietyanxiolysisanxiolytics
Examples include anesthetics, analgesics, anticonvulsant and antiparkinsonian drugs as well as medications used to treat neuropsychiatric disorders, such as antidepressants, anxiolytics, antipsychotics, and stimulant medications.
Together these categories of psychoactive compounds or interventions may be referred to as anxiotropic compounds or agents.

Empathogen–entactogen

entactogenentactogenicempathogen
Empathogen–entactogens
Empathogens or entactogens are a class of psychoactive drugs that produce experiences of emotional communion, oneness, relatedness, emotional openness—that is, empathy or sympathy—as particularly observed and reported for experiences with 3,4- Methylenedioxymethamphetamine (MDMA).

6-APB

6-(2-Aminopropyl)benzofuran
Example: MDMA (Ecstasy), MDA, 6-APB, AMP
6-APB (6-(2-aminopropyl)benzofuran) is an empathogenic psychoactive compound of the substituted benzofuran, substituted amphetamine and substituted phenethylamine classes.

Shamanism

shamanshamansshamanic
These substances may be used medically; recreationally; to purposefully improve performance or alter one's consciousness; as entheogens; for ritual, spiritual, or shamanic purposes; or for research.
An entheogen ("generating the divine within") is a psychoactive substance used in a religious, shamanic, or spiritual context.

Opioid

opioidsopioid analgesicendogenous opioids
Depressants ("downers"), including sedatives, hypnotics, and opioids. This category includes all of the calmative, sleep-inducing, anxiety-reducing, anesthetizing substances, which sometimes induce perceptual changes, such as dream images, and also often evoke feelings of euphoria. Examples: ethanol (alcoholic beverages), opioids, barbiturates, benzodiazepines.
These receptors mediate both the psychoactive and the somatic effects of opioids.

Cocaine

cokecocaine traffickingcrack
Examples: amphetamine, caffeine, cocaine, nicotine
Given the slow rate of absorption, maximum physiological and psychotropic effects are attained approximately 60 minutes after cocaine is administered by ingestion.

Narcotic

narcoticsdrugsdrug
This class of drugs can be highly addictive, and includes opiate narcotics, like morphine and codeine.
The term narcotic (, from ancient Greek ναρκῶ narkō, "to make numb") originally referred medically to any psychoactive compound with sleep-inducing properties.

Ketamine

Special KCalypsolK
For example, propofol is a GABA agonist, and ketamine is an NMDA receptor antagonist.
At these doses, the psychotropic side effects are less apparent and well managed with benzodiazepines.

Ethanol

alcoholbioethanolethyl alcohol
Examples: ethanol (alcoholic beverages), opioids, barbiturates, benzodiazepines.
As a central nervous system depressant, ethanol is one of the most commonly consumed psychoactive drugs.

Hypnotic

sleeping pillssleeping pillsoporific
Depressants ("downers"), including sedatives, hypnotics, and opioids. This category includes all of the calmative, sleep-inducing, anxiety-reducing, anesthetizing substances, which sometimes induce perceptual changes, such as dream images, and also often evoke feelings of euphoria.
Hypnotic (from Greek Hypnos, sleep) or soporific drugs, commonly known as sleeping pills, are a class of psychoactive drugs whose primary function is to induce sleep and to be used in the treatment of insomnia (sleeplessness), or for surgical anesthesia.

Datura stramonium

jimson weedjimsonweedstramonium
This is especially true of certain deliriants (e.g. Jimson weed), powerful dissociatives (e.g. Salvia divinorum), and classic psychedelics (e.g. LSD, psilocybin), in the form of a "bad trip".
The risk of fatal overdose is high among uninformed users, and many hospitalizations occur amongst recreational users who ingest the plant for its psychoactive effects.

Brain

brain functionmammalian braincerebral
A psychoactive drug, psychopharmaceutical, or psychotropic is a chemical substance that changes brain function and results in alterations in perception, mood, consciousness, cognition, or behavior.
The great majority of psychoactive drugs exert their effects by altering specific neurotransmitter systems.

Hallucinogen

hallucinogenicpsychedelic drughallucinogens
This is especially true of certain deliriants (e.g. Jimson weed), powerful dissociatives (e.g. Salvia divinorum), and classic psychedelics (e.g. LSD, psilocybin), in the form of a "bad trip".
A hallucinogen is a psychoactive agent which can cause hallucinations, perceptual anomalies, and other substantial subjective changes in thoughts, emotion, and consciousness.

Counterculture of the 1960s

counterculture1960s counterculturecountercultural
The use of entheogens for religious purposes resurfaced in the West during the counterculture movements of the 1960s and 70s.
As the 1960s progressed, widespread social tensions also developed concerning other issues, and tended to flow along generational lines regarding human sexuality, women's rights, traditional modes of authority, experimentation with psychoactive drugs, and differing interpretations of the American Dream.

Muscimol

pantherine
The muscimol-containing Amanita muscaria mushroom was used for ritual purposes throughout prehistoric Europe.
Muscimol (also known as agarin or pantherine) is one of the principal psychoactive constituents of Amanita muscaria and related species of mushroom.

Inhalant

inhalantssolvent abuseinhalant abuse
Inhalants, in the forms of gas aerosols, or solvents, which are inhaled as a vapor because of their stupefying effects. Many inhalants also fall into the above categories (such as nitrous oxide which is also an analgesic).
While a small number of inhalants are prescribed by medical professionals and used for medical purposes, as in the case of nitrous oxide (an anxiolytic and pain relief agent prescribed by dentists), this article focuses on inhalant use of household and industrial propellants, glues, fuels and other products in a manner not intended by the manufacturer, to produce intoxication or other psychoactive effects.

Opiate

opiatesOpiate pathwayopioid
This class of drugs can be highly addictive, and includes opiate narcotics, like morphine and codeine.
The major psychoactive opiates are morphine, codeine, and thebaine.