13 Abuse drugs Flashcards

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0
Q

Withdrawl

A
  • Cessation of prolonged use
  • Specific physiological correlates
  • Significant distress or impairrment in social, occupational, or other areas of functioning
  • Not due to other medical condition or explained by another disorder
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1
Q

Substance abuse disorder features

A
  • Impaired control: 1)more or longer use than directed, 2) unsuccessful stoppage, 3)great expenditure in obtaining, using, stopping 4)cravings
  • Social impairment: 5)failure to fulfill obligations, 6) continued use despite problems, 7)important activities given up
  • Risky use: 8) recurrent use in hazardous situations 9)use dispite problems caused
  • Pharmacologic dependance: 10) tolerance, 11) Withdrawl symptoms

Mild: 2-3 Moderate: 4-5 Severe: 6+

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2
Q

Induced disorders

A
  • Anxiety, panic attacks, or compulsions
  • Evidence of :
  • symptoms starting within 1 month of intoxication or withdrawl
  • Medication use etiologically related to disturbance
  • not better accounted for by other disorder
  • not during Delirium
  • Significant distress in social, occupational, or other functioning
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3
Q

Dopamine and addiction

A
  • Involved in pleasure pathways including:
  • Food
  • Sex
  • Excitement
  • Comfort
  • Acts on nucleus accumbens
  • is deficient when use is stopped causing cravings and or dysphoria
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4
Q

Biological reinforcement

A
  • not necessarily euphoric
  • level of initial tolerance predicts addiction likelihood
  • Most abused drugs will be self administered by rats (not LSD or cannabis
  • Most addictive drugs have limbic effects
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5
Q

Non dopamine transmitter modulators and abuse

A

Naltrexone: Opiate antagonism (also reduces alcohol cravings)
Campral: Gaba action
Chantax: Nicotinic ACHr agonist

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6
Q

Classical conditioning

A

Like pavlov’s dogs

  • association of conditioned stimulus (bell) with unconditioned stimulus (food)
    i. e. drug periphrenalia brings back idea of drug euphoria
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7
Q

Operant conditioning

A

Result linked with action

  • positive reinforcement- reward (drinks alcohol- becomse more socible)
  • negative reinforcement- removal of adversive stimulus (using more BZD removes withdrawl smptoms)
  • Punishment- adversive stimulus applied in conjunction
  • Extinction- removal of reinforcement eliminates behavior (unlearned)
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8
Q

Psychodynamic and personality factors in addiction

A
  • Personality disorders
  • affective dysregulation: emotional
  • imppulse control deficits: rely on reward
  • Ego deficits: dont know who they are and cant cope with bad effects
  • Family dynamics:
    • codependence/enabling
    • multigenerational drug dependence
    • parental loss
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9
Q

Stage 1 treatment for addictions

A

Detox:

  • can have risks (i.e. alcohol waithdrawl)
  • usually many attempts
  • inpatient more successful
  • meds may be helpful or necessary
  • range of settings- and expense
  • Business model - rapid detox (anesthesia for a day and a shot of naltrexone- then deal on your own.
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10
Q

Detox meds

A

Alcohol: BZD, Phenobarbital, folate and thiamine

Opiates: Clonidine (a2 antagonist), Loperamide(peripheral mu receptor/ anti diarrheal), analgesics

Stimulats: Sleep food water

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11
Q

Stage 2 treatment for addictions

A

Active treatment:

  • separation form substance
  • conversion
  • lifestyle changes
  • family and relationship work
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12
Q

Stage 3 for addiction treatment

A

Maintainence:

  • Often neglected
  • Never curative (always a recovering alcoholic, never “normal” again)
  • Change and stay changed!
  • Meds and aftercare needed
  • Personal commitment necessary
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13
Q

Relapse

A

Common
Often worse than former use- changes in tolerance
High morbidity

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14
Q

Motivational enhancement therapy stages

A
  • Precontemplation: rapport and support of positive changes in progress
  • Conetmplation: Encourage ambivalence: show pros and cons of use and treatment. Education
  • Preparation: encourage work towards a specific goal
  • Action: Continue to encourage and support, possibly recruit family if necessary
  • maintainence: Relapse prevention, education, preparation, vigilance
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15
Q

Motivational enhancement therapy

A

Actions based on stage of abuser, but generally:
*recognize stage, create conditions to enhance patient efforts, Support intrinsic motivation of patient

*Express empathy, develop discrepancy, avoid argumentation, roll with resistance, support self efficacy

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16
Q

12- step approach

A
  • residental centers use this
  • confrontation used initially, emphasis on change and personal responsibility: boundries, limits, conseequences

*groups to help with reality testing, vigilence though emphasis is on acceptance not confrontation.

17
Q

Self help

A
  • can help, can confound

* Most commonly use 12 step model and “smart recovery”

18
Q

How long should drug abuse treatment last

A
  • Usually >30 days for effectiveness

* Controlled by insurer

19
Q

Harm reduction approach

A
  • Variety of interventions
  • Do not demand sobriety
  • Moderation management
  • CBT approach; moderate intake- drink by counting
20
Q

Abuse help medications

A

Alcohol: Naltrexone, Disulphram, acamprosate, topiramate, baclofen
Opiates: Naltrexone, methadone, buprenorphrine
Nicotine: Nicotine gum, Buproprion, chantax
Cocaine: ???, stimulants?

21
Q

Opioid intoxication signs

A
  • pupillary constricton
  • drowsiness/coma
  • slurred speech
  • memory and attention impairment
22
Q

Opioid withdrawl

A

3 or more within minutes to several days of cessation:

  • Dysphoria
  • N/V
  • Muscle aches
  • Pupillary dilation
  • Piloerection/ Diaphoresis
  • Diarrhea
  • yawning
  • fever
  • insomnia
23
Q

Bupenorphrine

A
"suboxone" Given with naloxone orally- naloxone orally inactive
*partial mu agonist***
Mixed agonist
Effective in pain and addiction 
SE: nausea and constipation 

May need to discontinue for post surgery etc. severe pain and replace with opioids

24
Q

Types of tolerance

A

Dispositional/phamacokinetic (cyp inducement)
Pharmacodynamic (organ sensitivity changes/receptors)
Behavioral- Brain learns to act more normal under influence
Cross tolerrance- between drugs of same class

25
Q

Cannabidiol

A
  • TCH receptor bnding but without psychoactive effects

* anti seizure

26
Q

Cannabinoid receptors

A

CB1 in brain- high in cerebellum, basal ganglia, and hippocampus
CB2 in periphery
*Gi- inhibits adenylyl cyclase and neurotransmitter release

27
Q

Endogenous cannabinods

A

2-arachidonylglycerol

anandamide

28
Q

THC effects

A
  • Euphoria
  • Memory impairment
  • perceptual motor alterations
  • CV- tachycardia, angina, orthostasis
  • pulmonary- bronchodilation and irritant (can constrict) decrease alveolar macs and ciliary activity
  • reproductive- lowers T, increased gonad weight, decreased LHRH, decreased prolactin - affects marginally fertile
  • psychopathological- anxiety/paranoia, exacerbation of schizophrenia, consciousness clouding memory, perceptual and sleep disorders, amotivational syndrome
29
Q

Cannabis Withdrawl

A
Restlessness
irritability and mild agitation
sleep difficulties
decreased appetite and nausea
cravings
30
Q

Dronabinol

A

Oral THC in sesame oil

*controls nausea in cancer and improves appetite in AIDS wasting

31
Q

Sativex

A

THC/cannabidiol- MS and Cancer pain

32
Q

Rimonabant

A
CB1 antagonist (thought to be weightloss drug)
pulled d/t CV problems
33
Q

Phencyclidine

A

*PCP
*NDMA receptor antagonist
*T1/2 12-24 hours (OD T1/2 is 72 hours)
*OH and conjugated in liver
Excreted in urine

  • Sympathomimetic
  • CNS: small doses- drunkenness, moderate -analgessia anesthesia, Large-Convulsions
  • crudely resembles sensory isolation
  • Cataleptoid motor phenomenon
34
Q

PCP overdose

A
  • anxiety, agression, hallucnations, dysphoria, convulstions, delirium
  • Tachycardia and hypertensive crisis

Tx:

  • Supportive
  • Gastric lavage
  • Urine acidification
  • Diazepam/antihypertensives
  • Halperidol
35
Q

Ketamine

A

Less potent and shorter duration than PCP

36
Q

LSD

A
  • <1% crosses BBB but small dose needed
  • 15-20 minute onset 12 hout duration
  • SYMPATHOMIMETIC
  • hallucinations, mood lability, impaired judgement
  • 5HT agonist causes sensory effects
37
Q

LSD toxicity

A

*hallucnations, anxiety, panic, depersonalization

Tx: BZD and quiet environment

38
Q

MDMA

A
  • Ecstasy
  • feelings of well being and connection
  • 20-40 minute onset, 3-4 hour duration
  • Psychomotor stimulation, restlessnes, bruxism, anorexia, sweating, tremor
  • Ahedonia hangover
  • neurotoxicity of serotonin neurons
39
Q

GHB

A
  • GABA precursor and metabolite
  • 1-3 hour depressant- relaxation and tranquility
  • interacts with EtOH
  • OD causes drowsiness N/V, higher ODcauses loss of bladder control, amnesia, seizures
40
Q

Salvia divinorum

A

Psychedelic oral use
20-45 minute activity with visual dream like experience
*Salcinorin-A is a Kappa opioid agonist

41
Q

Drugs of abuse presentation and intoxication and wthdrawlTx

A

*Stimulant:
Presentation: euphoria, hallucinations, sympathetic activation. Tx: Benzos, B-clockers, cooling. Withdrawl: depression, suicidality, hyperphagia, hypersomnolent, fatigue, malaise, craving Tx: Food, water, sleep

*EtOH: Presentation: Stupor/coma, severe intoxication Tx: Saline with thiamine. Withdrawl: Benzos and carbemazepine

Opiates:

Hallucinogens: