Acid: Common street name for LSD.
Addiction: A chronic, relapsing disease, characterized by compulsive drug seeking and use and by neurochemical and molecular changes in the brain.
Agonist: A chemical compound that mimics the action of a natural neurotransmitter.
Analog: A chemical compound that is similar to another drug in its effects but differs slightly in its chemical structure.
Angel dust: Common street name for PCP.
Antagonist: A drug that counteracts or blocks the effects of another drug.
Buprenorphine: A mixed opiate agonist/antagonist medication for the treatment of heroin addiction.
Cerebral cortex: Region of the brain responsible for cognitive functions including reasoning, mood, and perception of stimuli.
Craving: A powerful, often uncontrollable desire for drugs.
Detoxification: A process of allowing the body to rid itself of a drug while managing the symptoms of withdrawal; often the first step in a drug treatment program.
Dissociative anesthetic: Compound, such as phencyclidine or ketamine, that produces an anesthetic effect characterized by a feeling of being detached from the physical self.
Dopamine: a neurotransmitter present in regions of the brain that regulate movement, emotion, motivation and feelings of pleasure.
DXM: Common street name for dextromethorphan.
Fentanyl: A medically useful opioid analog that is 50 times more potent than heroin.
Glutamate: A neurotransmitter associated with pain, memory, and response to changes in the environment.
Hallucinogen: A drug that produces hallucinations – distortion in perception of sights and sounds – and disturbances in emotion, judgment, and memory.
HPPD: Hallucinogen persisting perception disorder; the spontaneous and sometimes continuous recurrence of perceptual effects of LSD long after an individual has ingested the drug.
Ketamine: Dissociative anesthetic abused for its mind-altering effects and sometimes used to facilitate sexual assault.Locus ceruleus: Region of the brain that receives and processes sensory signals from all areas of the body.
Levo-alpha-acetyl-methadol (LAAM): An FDA-approved medication for heroin addiction that patients need to take only three to four times a week.
Meperidine: A medically approved opioid available under various brand names (e.g., Demerol).
Methadone: A long-acting synthetic medication shown to be effective in treating heroin addiction.
Narcolepsy: a disorder characterized by uncontrollable attacks of deep sleep.
Neurotransmitter: Chemical compound that acts as a messenger to carry signals or stimuli from one nerve cell to another.
NMDA: N-methyl-D-aspartate, a chemical compound that reacts with glutamate receptors on nerve cells.
PCP: Phencyclidine, a dissociative anesthetic abused for its mind-altering effects.
Persistent psychosis: Unpredictable and long-lasting visual disturbances, dramatic mood swings, and hallucinations experienced by some LSD users after they have discontinued use of the drug
Physical dependence: An adaptive physiological state that occurs with regular drug use and results in a withdrawal syndrome when drug use is stopped; usually occurs with tolerance.
Psychosis: a mental disorder characterized by symptoms such as delusions or hallucinations that indicate an impaired conception of reality
Robo: Common street name for dextromethorphan.
Rush: a surge of euphoric pleasure that rapidly follows administration of a drug
Serotonin: A neurotransmitter that causes a very broad range of effects on perception, movement, and the emotions by modulating the actions of other neurotransmitters in most parts of the brain.
Tolerance: a condition in which higher doses of a drug are required to produce the same effect as experienced initially; often leads to physical dependence.
Toxic: temporary or permanent drug effects that are detrimental to the functioning of an organ or group of organs.
Withdrawal: a variety of symptoms that occur after use of an addictive drug is reduced or stopped.