Drug dependence Flashcards

1
Q

psychoactive drugs

A

drugs that can alter our consciousness and perceptions

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2
Q

what are the 4 main categories of psychoactive drugs

A

depressants
stimulants
hallucinogens
opioids

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3
Q

depressants

A

drugs that lower body’s basic functions and neural activity. decrease HR, BP, processing/reaction time

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4
Q

3 categories of depressants

A

alcohol
barbiturates
benzodiazepines

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5
Q

moat popular depressant is

A

alcohol

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6
Q

depressants vasodilate at

A

low

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7
Q

depressants vasoconstrict at

A

high

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8
Q

alcohol

A

decreased inhibitions and cognitive control
lack of coordination, slurring of speech

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9
Q

barbiturates

A

to induce sleep and reduce anxiety
depress cns
anesthesia and anticonvulsants

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10
Q

benzodiazepines

A

sleep aids, anti-convulsants/anxeity
enhance brain’s response to GABA
zelam/zolam

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11
Q

stimulants

A

drugs that excite cns
increase hr/bp, alertness
caffeine, amphetamine, methamphetamine, MDMA, cocaine, nicotine

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12
Q

the effect of stimulants is

A

increased glucose metabolism in brain

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13
Q

hallucinogens/psychedelics

A

distorted perceptions/hallucinations. seeing or hearing things different from what they truly are
mescaline, psilocybin, peyote

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14
Q

Opioids/opiates

A

opiates - natural
opioids - synthetic
decreased ins, hr, bp
sleep and relaxation
analgesic (reduce perception of pain)
overdose leads to respiratory failure

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15
Q

alcohol is absorbed through

A

cell membrane

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16
Q

what depressant used with alcohol will lead to death?

A

barbiturates

17
Q

short-acting benzodiazepines to treat

18
Q

long-acting benzodiazepines to treat

19
Q

opiates act on

A

endorphin receptors

20
Q

depressants act on

A

GABA receptors

21
Q

caffeine works by

A

inhibiting adenosine receptors

22
Q

this drug causes the brain to release dopamine, norepinephrine, serotonin depleting the brain’s supply

23
Q

amphetamine works by

A

blocking the reuptake of dopamine stimulating an increase in release of dopamine from presynaptic membrane

24
Q

homeostasis

A

state in which the body maintains temperature, heartbeat, metabolism, etc

25
routes of drug entry
oral injection inhalation
26
what is the slowest route of drug consumption?
oral since it goes through GI tract
27
what is the fastest route for drug consumption?
injection
28
when drug like a nicotine patch is absorbed through the skin. this is called
transdermal
29
drugs gotten through needle stuck in muscle
intramuscular
30
where in the brain is dopamine produced?
mid brain - ventral tegmental area (VTA)
31
mesolimbic pathway
NAcc, amygdala, hippocampus
32
which substance is responsible for feelings of satisfaction ?
serotonin
33
34
tolerance
you get used to a drug so much that you need more to achieve the same effect
35
cross-tolerance
reduction in efficacy or responsiveness to a novel drug due to a common cns target
36
intoxication
when drug enters a body and exerts effect. behavioral and psychological effects on person (drug-specific)
37
withdrawal
exits after a period of use
38
acute withdrawal
few weeks, physical symptoms, differs from person to person
39
post-acute withdrawal
fewer physical symptoms, more psychological/emotional, same for everyone