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48 Cards in this Set
- Front
- Back
(1) use of a drug in a way that differs from the accepted patterns in a society. (2) use of drugs in a manner which causes major and continuing problems in life.
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Drug Abuse
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Continued use of a drug DESPITE adverse medical or social consequences.
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Compulsive Drug Use (Dependence)
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drug needed for optimal state of MENTAL well being; Minimax principle drug minimizes discomfort or maximizes pleasure.
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Psychological dependence
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An altered physiological state produced by repeated use of a drug, which requires continued use of drug in order to prevent an abstinence or withdrawal syndrome.
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Physical Dependence
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The ability of one drug to block the withdrawal syndrome of another drug and to maintain the dependent state.
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Cross Dependence
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Decreased response to a given dose of drug after repeated doses.
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Tolerance
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Decreased response to receptor
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Pharmacodynamic tolerance
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Increased metabolism
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pharmacokinetic tolerance
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Tolerance to a class of drugs
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Cross-tolerance
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What factors contribute to compulsive drug abuse?
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1.escape from reality
2. obtain a sense of euphoria 3. escape high levels of anxiety 4. gain membership in a social group 5. relieve physical pain 6. bolster a poor self image 7. enhance introspection or creativity 8. have a novel experience |
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12 24 hrs restless sleep, DILATED PUPILS, anorexia, piloerection, irritability, tremor.
What drug class withdrawal? |
Opiods
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How long does opioid withdrawal symptoms last?
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7-10 days. Abstinence syndrome may last for months.
Withdrawal is tramatic but SELDMON life threatening. |
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RX for opiod withdrawal?
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1. Methadone maintence (levomethadyl also)
2. Naloxone 3. Clonidine (A2 agonist) 4. Buprenorphine (partial opiod agonist) |
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Describe tolerance to benzos, methaqualone, GHB, and ketamine.
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Chronic intox results in pharmacokinetic and pharmacodynamic tolerance. Considerable tolerance develops to the sedative and intoxicating effects of these drugs but NOT to the lethal effects.
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Withdrawal symptoms in benzos, ghp, ketamine?
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Mild paroxysmal EEG abnormalities, REM rebound, insomnia, anxiety. Moderate tremulousness and weakness. Severe seizures and delirium.
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Is withdrawal from benzo's, ghp, and ketamine LETHAL?
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potentionally lethal
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Is withdrawal from benzo's, ghp, and ketamine LETHAL?
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Lethal.
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Is withdrawal from benzo's, ghp, and ketamine LETHAL?
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Yes. Can result in status epiletpicus
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What type of tolerance develops from barbs, benzos, GHB, and ketamine?
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1. Chronic use: pk and pd tolerance
2. Tolerance to sedative and intoxicating effects, but NOT TO LETHAL effects |
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Does tolerance develop for amphetamines and cocaine?
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1. Tol to Desired effects of amphetamines
2. Tol to some effects of cocaine, but sensitiziation to other effects. |
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Does physical dependence develop for amphetamines, cocaine?
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PD strong for cocaine, but the withdrawal signs are so mild that they aren't recognized (fatigue, increased appetite, depression w/suicidal ideation)
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Does tolerance develop to nicotine?
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Yes, but not to ALL effects.
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What are withdrawal signs of nicotine?
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Irribility, anxiety, restlessness, sleep disturbances, headaches, etc.
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Does tolerance develop to marijiana?
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Not really, they sensitivity may INCREASE.
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Withdrawal of marijiana?
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Irritability, restlessness, nervousness, decreased appetite, insomnia.
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Tolerance and withdrawal effects of LSD, psilocybin, mescaline, and Salvia (hallucinogens)?
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1. Tolerance develops to behavioral effects
2. Physical dependence and withdrawal signs DO NOT occur. |
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Tolerance, withdrawal, or physical dependence of inhalants?
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No tolerance, withdrawal, but does produce PSYCHOLOGICAL dependence.
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Why use methadone for opioid withdrawal?
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Methadone has a big T1/2. This will slowly wean pts off opiods while decreasing withdrawal effects. Levomethadyl is also available.
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What role does buprenorphine have in opiod withrdrawal?>
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It is the first drug to maintain opioid dependence OUTSIDE of specialized clinics. Physicians must be certified by FDA to prescribed.
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What's the relationship of tolerance and physical dependence?
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1. T and PD contributed to drug abuse.
2. T to euphoria-->more drug--> more PD 3. The more PD the individual, the more drug they have to use to avoid adverse WITHDRAWAL syndrome. |
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What are symptoms of opiod abuse?
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1. No direct toxicity to organs
2. W/D symptoms begin 6-12 hours after last dose of heroin (lacrimation, sweating, DILATED PUPILS) 3. W/D is not life threatening. |
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What are the symptoms of CNS depressants (barbs, BDZ, flunitrazepam, GHB, and ketamine?
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1. May not be signs of chronic use
2. Mild intox, rapid mood changes, slurred speech, nystagmus, diplopia, vertigo. 3. Withdrawal--opposite effects include anxiety, tremors, seizures, STATUS EPILEPTICUS (LETHAL) |
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A patient presents with euphoria, increased energy, libido, motor restlessness, paranoia, hallucitnations (tactile and visual.) What are they taking?
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Amphetamines or Cocaine
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What are adverse affects of ACUTE use of amphetatmines/cocaine/MDMA
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anorexia, insomnia, tachycardia, tachypnea, HTN, hyperthermia, seizures.
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Which lasts longer, methamphetamines or cocaine?
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Methamphetamine.
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Why do long users of intranasal cocaine present with septal damage?
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Cocaine is a vasoconstrictor and causes necrosis of nasal septum.
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What are the side effects of chronic cocaine use?
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arrhythmias, MI, myocarditis, high output CHF, dilated cardiomyopathy, intercerebral hemorrhage, aortic dissection, DIC.
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Memory loss, learning impairment, motor deficits, DENTAL DECAY, and psychiatric disorders.
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Chronic methamphetamine use (Meth mouth)
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What are symptoms of nicotine use?
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Reinforcing properties, alerting and muscle relaxing effects, euphoria, mortality.
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What are the effects of marjiana use?
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1. Apathy, loss of interest (Amotivational Syndrome.)
2. No evidence of Irreversible changes in brain. 3. Effects of young adolscents may be serious. |
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What are the effects of using inhalants?
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1. Euphoria, hallucinations, short duration of action = frequent use, psychological dependence,
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What are the effects of industrial solvents and flurocarbons as inhalants?
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IS: brain, liver, kidney damage, permanent PNS damage, bone marrow suppression, pulmonary dz.
FC: Sudden Death d/t asphyxiation or ventricular arrhythmias. |
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What makes one person more likely to use drugs compulsively or non compulsively?
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1. Vulnerability (Genetics and Environment).
2. Impulsive nature, rebelliousness, low frustration tolerance, friends, quality of life. |
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What is the treatment of withdrawal of barbs, BDZ, GHB, ketamines?
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Long acting BZD and slowly withdraw.
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What is the treatment of withdrawal of amphetaines, cocaine, and MDMA?
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1. Drug treatment to prevent abuse has LITTLE success.
2. anti-cocaine vaccine? |
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Treatment of nicotine withdrawal (3)?
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1. Nicotine replacement (gum, patch, spray)
2. Bupropion and other AD's to stop cravings. 3. Varenicline |
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What is Varenicline?
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Partial nicotinic rec agonist. Relieves cravings and blocks pleasurable effects if people do smoke. MOST EFFECTIVE AND WEIGHT GAIN!
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What is the part of the brain that is invovled with reward system and the final NT?
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1. Nucleus accumbens and insula.
2. dopamine! |