Session-11 Substance Disorders Flashcards
How is DSM-IV-TR: “Substance” defined?
Drug of abuse, medication, or toxin
What are the DSM-IV-TR Substance Classes?
- Alcohol
- Amphetamine
- Caffeine
- cannabis
- Cocaine
- Hallucinogins
- Inhalants
- Nicotine
- Opiods
- Phencyclidine
- Sedatives, Hypnotics or Anxiolytics
- Polysubstance
- Other.
See pp. 193 (Table 1): diagnoses associated with each class of substances
What are the 4 Major Categories of Substance Use Diagnoses in DSM-IV-TR?
- substance intoxication
- substance abuse
- substance dependence
- substance withdrawal
What is #1 Substance intoxication?
effects of ingestion of the substance (reversible substance-specific syndrome due to recent ingestion of/exposure to a substance; clinically significant maladaptive behavioral or psychological changes due to effects of the substance; sxs not due to GMC or better accounted for by another disorder).
What is #2 Substance abuse?
repeated negative consequences (legal, social, occupational, etc.) resulting from a maladaptive pattern of substance use.
What is #3 Substance dependence?
cognitive, behavioral, and physiological symptoms that indicate that the person continues use of the substance in spite of negative consequences related to the substance; will see tolerance, withdrawal, and compulsive drug use.
“…maladaptive pattern of substance use, leading to clinically significant impairment or distress, as manifested by three (or more) of the following, occurring at any time in the same 12-month period:” (APA, 2000)
- Tolerance
- Withdrawal
- Substance taken in larger amounts or over longer period than intended
- Unsuccessful efforts to cut down or control use
- Great deal of time spent obtaining, using or recovering from effects
- Social, occupational or recreational activities given up because of use
- Use is continued despite knowledge of a persistent psychological or physical problem likely to have been caused or exacerbated by substance use
What is #4 Substance withdrawal?
cognitive, behavioral and physiological changes after cessation of prolonged use (development of a substance-specific syndrome due to cessation of/reduction in substance use; causes clinically significant distress or impairment in functioning; sxs not due to GMC and not better accounted for by another mental disorder).
DSM-IV-TR: What is diagnostic criteria for Alcohol Intoxication?
A. Recent ingestion of alcohol.
B. Clinically significant maladaptive, behavioral or psychological changes that developed during, or shortly after alcohol ingestion
C. One or more of the following symptoms
- Slurred speech
- Incoordination
- Unsteady gait
- Nystagmus
- Impairment in attention or memory
- Stupor or coma
D. Symptoms not due to GMC and not better accounted by another mental disorder.
DSM-IV-TR: What is diagnostic criteria for Alcohol Withdrawal?
A. Cessation or reduction of alcohol use that has been heavy and prolonged.
B. Two or more of the following developing after criterion A: Alcohol withdrawal (2 or more) -Autonomic hyperactivity -Increased hand tremor -Insomnia -Nausea or vomiting -Transient visual, tactile or auditory hallucinations -Psychomotor agitation -Anxiety -Grand mal seizures
C. Symps. Cause clinically sig. distress or impairment.
D. symps. Not due to GMC and not better accounted by another mental disorder.
Specify if: with Perceptual disturbances (hallucinations with intact reality testing or aud/vis/tactile illusions occur without delirium). Intact reality testing—knowledge that hallucination caused by substance and not representing external reality.
What are issues related to Alcohol?
Alcohol intoxications sometimes associated with blackout (no memory of what happened when drinking).
Alcohol related disorders are associated with increase in risk of accidents, violence and suicide.
Long-term use associated with liver function problems.
One of the leading cause of birth defects when a pregnant woman drinks-Fetal Alcohol Syndrome babies.
Clinically comorbid with other mental disorders.
What are Differential Issues Re: the Continuum of Substance Abuse-Dependence Disorders?
Course of pathology often entails substance abuse evolving into substance dependence, with long periods of dependence followed by sporadic periods of sobriety and remission/relapse.
Differential considerations re: substance abuse vs. dependence: typically involves an evaluation of factors such as tolerance, time spent on the substance, social relationships around the substance, other activities given up, and continued use (these are “habitual” indicators, i.e., dependence vs. abuse).
What are DSM-IV-TR Substance Dependence Specifiers?
The DSM notes two specifiers (p. 195):
(1) With Physiological Dependence (evidence of tolerance and withdrawal)
(2) Without Physiological Dependence (no evidence of tolerance and withdrawal; instead, compulsivity).
Tolerance = need for greatly increased amounts of the substance to achieve either the desired effect or intoxication.
Withdrawal = physiological and behavioral changes that occur in the central nervous system when blood and tissue concentrations of the substance of choice decline after prolonged consistent use of the substance.
What is beyond the DSM Substance Dependence Specifiers?
Beyond the DSM Substance Dependence specifiers, note that there is physiological (see tolerance and withdrawal) and psychological (compulsive use) dependence
What is physiological dependence?
Physiological dependence is an indication of a more severe clinical course including earlier onset, higher levels of intake, and more problems overall related to the substance use
note: Yet, research has found that psychological dependence is harder to break than physiological dependence
What are DSM-IV-TR course specifiers for abuse or dependence?
See p. 195-197; apply these only after criteria for Abuse or Dependence have not been met for at least 1 month:
- Early Full Remission
- Early Partial Remission
- Sustained Full Remission
- Sustained Partial Remission
DSM-IV-TR: when do course specifiers for abuse or dependence not apply?
Previous course specifiers do not apply if the individual is on agonist therapy or in a controlled environment; in these situations, use specifiers (see p. 197):
- On Agonist Therapy (i.e., methadone) or Partial Agonist or Agonist/Antagonist
- In a Controlled Environment
What is an agonist?
An agonist is an agent that binds to a receptor and activates that receptor in order to elicit an effect (typically transmitting a signal to the inside of the cell, either by opening a channel to allow ions to flow in/out, or changing the receptor’s shape to cause a cascade of intracellular events to occur).
Drugs that are agonists essentially mimicthe action of the endogenous (naturally occurring) neurotransmitters, typically with the sameor a stronger affinity than the neurotransmitter itself
What is an antagonist?
Anantagonistis an agent that binds to a receptor but does not elicit the response that the neurotransmitter or an agonist would cause.
The antagonist blocks the receptor and prevents activation by neurotransmitters or other drugs.
What is “the opiate agonist morphine”?
When morphine enters the brain, it binds to opiate receptors and activates them. This binding is what produces the effects of Morphine.
In the case of a Morphine overdose, where a hospital is concerned that the high dose of morphine may be dangerous (depressing breathing and heartrate), they may administer Naloxone (an opiate antagonist). The Naloxone finds its way to your opiate receptors and “competes” with Morphine for binding of the receptors.BecauseNaloxone has a higher affinity for the receptors than Morphine, the Naloxone will generally win out, replacing much of the Morphine at the receptor sites.
Within 1-3 minutes of a sufficient Naloxone injection (2-4mg), a patient who has overdosed on Morphine will generally wake up, usually quite agitated. If given to an otherwise “normal” person (not in the midst of an overdose) who happens to be addicted to an opioidor opiate, Naloxonecan immediately precipitate withdrawal symptoms (Nausea, vomiting, hallucinations, disorientation, excretion, tremors, convulsions, agitation, anxiety and so forth).
What are the three traditional types of pharmacotherapy for opiod addiction?
- agonist treatment (methadone and buphrenorphine)
- antagonist treatment (naltrexone)
- the use of these and other agents (clonidine) that are medically supervised to help withdrawal (detoxication) from opiods as a means of entry into treatment
What is #1: Agonist Treatment (Methadone Pharmacotherapy)?
Agonist Pharmacotherapy
Methadone is the most commonly used medication for opioid addiction treatment in the United States.
Methadone suppresses opioid withdrawal, blocks the effects of other opioids, and decreases craving for opioids.
How is substitution therapy defined (opiate agonist methadone)?
Substitution therapy is defined as the administration under medical supervision of a prescribed psychoactive substance–pharmacologically related to the one producing dependence – to people with substancedependence, for achieving defined treatment aims (usually improved health and well-being). Substitution therapy is widely used in the management of opioid dependence and is often referred to as“opioid substitution treatment,” “opioid replacement therapy”, or “opioid pharmacotherapy”.