front 1 psychoactive drug | back 1 a chemical substance that alters perceptions and moods |
front 2 substance use disorder | back 2 a disorder characterized by continued substance craving and use despite significant life disruption and/or physical risk |
front 3 tolerance | back 3 the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug's effect |
front 4 withdrawal | back 4 the discomfort and distress that follow discontinuing an addictive drug or behavior |
front 5 depressants | back 5 drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions |
front 6 alcohol use disorder | back 6 (popularly known as alcoholism) alcohol use marked by tolerance, withdrawal, and a drive to continue problematic use |
front 7 barbiturates | back 7 drugs that depress central nervous system activity, reducing anxiety but impairing memory and judgement |
front 8 opiates | back 8 opium and its derivatives, such as morphine and heroin; depress neural activity, temporarily lessening pain and anxiety |
front 9 stimulants | back 9 drugs (such as caffeine, nicotine, and the more powerful cocaine, amphetamines, methamphetamine, and Ecstasy) that excite neural activity and speed up body functions |
front 10 nicotine | back 10 a stimulating and highly addictive psychoactive drug in tobacco |
front 11 cocaine | back 11 a powerful and addictive stimulant derived from the coca plant; produces temporarily increased alertness and euphoria |
front 12 amphetamines | back 12 drugs that stimulate neural activity, causing accelerated body functions and associated energy and mood changes |
front 13 methamphetamine | back 13 a powerfully addictive drug that stimulates the central nervous system, with accelerated body functions and associated energy and mood changes; over time, appears to reduce baseline dopamine levels |
front 14 Ecstasy (MDMA) | back 14 a synthetic stimulant and mild hallucinogen. Produces euphoria and social intimacy, but with short-term health risks and longer-term harm to serotonin-producing neurons and to mood and cognition |
front 15 hallucinogens | back 15 psychedelic ("mind-manifesting") drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input |
front 16 near-death experience | back 16 an altered state of consciousness reported after a close brush with death (such as cardiac arrest); often similar to drug-induced hallucinations |
front 17 LSD | back 17 a powerful hallucinogenic drug; also known as acid (lysergic acid dietyhlamide) |
front 18 THC | back 18 the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations |