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© 2011 McGraw-Hill Higher Education. All rights reserved.

Chapter 2

Drug Use as a Social Problem

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© 2011 McGraw-Hill Higher Education. All rights reserved.

Costs of Drug Use to Society

  • Deaths
  • Emergency room visits
  • Drugs in the workplace and lost productivity
  • Broken homes, illnesses, shorter lives, etc.
  • Cost of maintaining habit
  • Cost of criminal behavior
  • Cost of treating patients
  • Fetal alcohol syndrome
  • Others?

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© 2011 McGraw-Hill Higher Education. All rights reserved.

Changing Attitudes

  • What made the government change from the laissez-faire attitude of the 1800s to one of control?
  • Toxicity
  • Dependence
  • Crime

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© 2011 McGraw-Hill Higher Education. All rights reserved.

Toxicity

Toxic = poisonous, deadly, or dangerous

  • What makes a drug toxic?
  • Amount used
  • How it is used
  • What the user did while on the drug

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© 2011 McGraw-Hill Higher Education. All rights reserved.

Drug-Related Toxicity

Examples of acute toxicity

  • Behavioral: “Intoxication” that impairs the actions of drug users and increases the danger to themselves and others
  • Physiological: Overdose that causes the user to stop breathing

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© 2011 McGraw-Hill Higher Education. All rights reserved.

Drug-Related Toxicity

Examples of chronic toxicity

  • Behavioral
  • Personality and lifestyle changes
  • Effects on relationships with friends and family
  • Physiological
  • Heart disease
  • Lung cancer
  • Cirrhosis
  • Other health effects

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Blood-Borne Diseases

  • Specific toxicity for users who inject drugs
  • AIDS, HIV infection, and hepatitis B and C
  • Sharing needles passes infectious agents directly into the bloodstream
  • Some states, cities prohibit

needle purchase without Rx

  • Syringe exchange programs

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Substance Dependence

  • Three basic processes
  • Tolerance
  • Physical dependence
  • Psychological dependence

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© 2011 McGraw-Hill Higher Education. All rights reserved.

Tolerance

  • Diminished effect on the body after repeated use of the same drug
  • The body develops ways to compensate for the chemical imbalance caused by the drug
  • Regular drug users may build up tolerance to the extent that their dosage would kill a novice user

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Physical Dependence

  • Physical dependence is defined by the occurrence of a withdrawal syndrome
  • Tolerance typically precedes physical dependence
  • If drug use is stopped suddenly, withdrawal symptoms occur, ranging from mild to severe
  • Physical dependence means the body has adapted to the drug’s presence

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© 2011 McGraw-Hill Higher Education. All rights reserved.

Psychological Dependence

  • Psychological or behavioral dependence
  • High frequency of drug use
  • Craving for the drug
  • Tendency to relapse after stopping use
  • Behavior is reinforced by the consequences
  • Over time, this becomes the biggest reason users report they continue to use

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Changing Views of Dependence

  • Early medical model = true addiction involves physical dependence; key is treatment of withdrawal symptoms
  • Positive reinforcement model = drugs can reinforce behavior without physical dependence
  • Psychological dependence is increasingly viewed as the driving force behind repeated drug use
  • This refutes the sometimes common belief that drugs that aren’t as strongly physically addicting are less dangerous

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Is Dependence
Caused by the Substance?

  • Some drugs are more likely than others to lead to dependence
  • Method of use, as well as other factors, influences risk of dependence
  • The “war on drugs” reflects the perspective that drugs are themselves evil

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© 2011 McGraw-Hill Higher Education. All rights reserved.

Is Dependence Biological?

  • Is dependence due to biochemical or physiological actions in the brain?
  • Still no way to scan the brain and know if a person has/had developed dependence
  • Genetic physiological or biochemical markers have been sought as well, but none has proven reliable

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Is There an “Addictive Personality”?

  • No way to know if the drug or the drug use changes a person’s personality
  • Many other factors affect personality
  • Sensation-seeking = a personality characteristic statistically associated with early substance use and abuse

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Is Dependence a Family Disorder?

  • Alcohol dependence often exists within a dysfunctional family
  • Evidence suggests that dysfunctional relationships play a role in dependence, but they aren’t the only factor

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Is Substance Dependence a Disease?

  • Founders of AA characterized alcohol dependence as a disease
  • Others argue that dependence doesn’t have all the characteristics of a disease
  • There are ways to test and treat the effects of alcoholism but not the disease itself
  • There is some disagreement over how to define disease as well

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Biopsychosocial Perspective

  • Dependence is related to dysfunctions of:
  • Biology
  • Personality
  • Social interactions

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Drugs and Crime

  • Drug use may change a person’s personality
  • People under the influence may commit crimes (e.g., many cases of homicide, domestic violence, etc.)

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Drugs and Crime

  • Crimes may be carried out to obtain money for drugs
  • Drug use is a crime

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Why We Regulate Drugs

  • We want to protect society from the dangers of some types of drug use = legitimate social purpose
  • Some laws are not developed as part of a rationally devised plan and may not be realistic or effective
  • Current laws

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