Chapter 32: Substance Use Disorders Flashcards
Knowledge of abuse needed by health care providers
Diagnosis and treatment of acute toxicity
Diagnosis and treatment of secondary medical complications of drug abuse
Facilitating drug withdrawal
Providing education and counseling to maintain long-term abstinence
drug abuse
Using a drug in a fashion inconsistent with medical or social norms
By this definition, drug abuse is culturally defined. Thus, what is considered drug abuse may differ in individual cultures. For example, in the United States, moderate consumption of alcohol is not usually considered abuse. In contrast, any ingestion of alcohol may be considered abuse in some Muslim societies. Furthermore, cultural definitions of abuse can change over time. For example, when psychedelic use first became popular in America, these agents were legal and their use was not generally disapproved. However, when use of psychedelics became widespread, our societal posture changed and legislation was passed to make the manufacture, sale, and use of these drugs illegal.
drug addiction
A chronic, relapsing brain disease that is characterized by compulsive drug seeking and use, despite harmful consequences
Addiction is a very complex phenomenon that includes social, psychological, genetic, and environmental components.
Note that nowhere in this definition is addiction equated with physical dependence. Although it is related to addiction, physical dependence is neither necessary nor sufficient for addiction to occur.
tolerance
A state in which a particular dose elicits a smaller response than it did with initial use. As tolerance increases, higher and higher doses are needed to elicit desired effects.
cross-tolerance
A state in which tolerance to one drug confers tolerance to another.
psychologic dependence
An intense subjective need for a particular psychoactive drug.
physical dependence
A state in which a withdrawal syndrome will occur if drug use is discontinued.
cross-dependence
The ability of one drug to support physical dependence on another drug.
withdrawal syndrome
A constellation of signs and symptoms that occurs in physically dependent individuals when they discontinue drug use.
Diagnostic Criteria for Substance Abuse Disorder
Continued use of a substance despite significant substance-related problems
Change in brain circuitry that persists despite detoxification
Diagnosis of a substance abuse disorder is based on behaviors related to the continued use of a substance
Physical dependence can exist without addiction, such as in cancer patients that are taking high doses of opioid painkillers.
factors that contribute to drug abuse
Reinforcing properties of drugs -Drugs can be reinforcing through induction of a pleasurable state or reduction of a negative state (stress/anxiety).
Physical dependence -More dependence, worse withdrawal
Psychologic dependence
Social factors -Peer pressure
Drug availability
Vulnerability of the individual
3 things that happen when a person tries drug for first time
- Try drug and never use it again
- Try drug and use occasionally
- Try and have compulsive use
Neurobiology of Addiction
Voluntary users can become compulsive users as a result of molecular changes in the brain:
Reward circuit normally serves to reinforce behaviors essential for survival
Major transmitter is dopamine
Addictive drugs cause release of dopamine, activating the reward circuit
Activation of reward circuit encourages repetition of behavior
The amount of dopamine released by addictive drugs may be 2 to 10 times the amount released by natural stimuli.
Principles of Addiction Treatment
With therapy, 40% to 60% of addicted individuals can reduce drug use
Ideal goal of treatment is complete cessation of drug use, but any reduction of use is beneficial
Sustained moderation is very difficult for opioid, cigarette, and alcohol abuse
Recovery is a prolonged process requiring multiple treatment episodes
The Controlled Substances Act
Comprehensive Drug Abuse Prevention and Control Act of 1970
Record keeping
Drug Enforcement Agency Schedules I to V
Prescriptions
Labeling -
Schedule 2,3,4 “federal late prohibits transfer of this drug to any persons that it is not indicated for” Need DEA to prescribe schedule 2 drug
State laws -may be more restrictive