About This Chapter
Pharmacological & Neurophysiological Principles - Chapter Summary and Learning Objectives
In this chapter, you can learn more about pharmacological and neurophysiological principles as they relate to substance abuse. The lessons explore ways that drugs are administered, including oral, rectal and inhalation methods, as well as the physical consequences associated with drug use. You can also find out how taking multiple drugs can impact one another and the body, the definition of drug toxicity and how drug tolerance can lead to drug overdose.
Lesson quizzes and a chapter exam are available to test how well you understand the materials. You can also contact an instructor if you have any questions. After completing this chapter, you should be able to identify:
- The routes of drug administration
- Physical consequences and treatment of drug abuse
- Impact of drugs on the brain and nervous system
- Different ways that the body is impacted by agonists and antagonists
- Importance of the placebo effect
- Stages of drug addiction
|Routes of Drug Administration: Oral, Topical, Inhalation & Injection||Study drug administration routes, including oral, rectal, inhalation, mucous membranes, skin and intravenous.|
|Drug Abuse: Physical Consequences and Treatment||Discover factors that determine the physiological impact of drugs.|
|Drug Toxicity: Effective & Lethal Dose-Response||Analyze drug toxicity, effective dose-response and lethal dose-response curves.|
|How Drugs Affect the Brain & Nervous System||Examine the brain's anatomy and the ways drugs interact with and affect the brain and nervous system.|
|Actions of Drugs on the Body: Pharmacodynamics||Learn about pharmacodynamics and how agonists and antagonists affect the body.|
|Drug Interactions With Other Drugs & Activity Within the Body||Analyze drug interaction and the importance of determining drug interactions before taking multiple drugs.|
|Psychological Factors in Drug-Taking Behavior||Explore the psychological factors in drug-taking behavior and how they alter the experience.|
|Placebo Effect: Definition, Lesson & Quiz||Take a closer look at the placebo effect in drug-taking behavior.|
|Drug Tolerance & Drug Overdose||Understand drug tolerance and the issues it poses for drug abusers.|
|Identifying the Stages of Addiction||Study the stages of drug use from nonuse to addiction.|
1. Routes of Drug Administration: Oral, Topical, Inhalation & Injection
The way by which illicit drugs can be administered or taken into the body are numerous. These routes include the oral route, transdermal, inhalation, and intravenous injection.
2. Drug Abuse: Physical Consequences and Treatment
The kidneys, heart, lungs, and skin are all affected by drug use, sometimes severely so. You'll learn how and also the many different ways by which a person can be treated for substance abuse in this lesson.
3. Drug Toxicity: Effective & Lethal Dose-Responses
In this lesson, you're going to learn about several important topics related to drug toxicity: the lethal dose 50, the effective dose 50, and the therapeutic index (margin of safety).
4. How Drugs Affect the Brain & Nervous System
Have you ever wondered how and why drugs affect the brain? This lesson goes over the basics of major drug classes and how they cause the central nervous system, namely the brain, to malfunction.
5. Actions of Drugs on the Body: Pharmacodynamics
The way that drugs interact with the body is called pharmacodynamics. This lesson defines this process and explains the concepts of agonism and antagonism.
6. Drug Interactions With Other Drugs & Activity Within the Body
Drugs can affect your body in quite a few ways. You'll learn about how they affect you and how they interact with one another to affect you by learning about tolerance, cross-tolerance, the additive effect, synergism, potentiation, and antagonism.
7. Psychological Factors in Drug-Taking Behavior
What are the psychological factors that predispose or push someone to drug use? Is it all because of mental illness? Is it all the media's fault? You'll find out about some of these factors in this lesson.
8. Placebo Effect: Definition & Explanation
The placebo effect occurs when a person believes that he or she is receiving real treatment and reports an improvement in his or her condition. In this lesson, learn what may cause the placebo effect and its importance in research.
9. Drug Tolerance & Drug Overdose
This video lesson explains drug tolerance and drug overdose as well as how they are very closely related. After the lesson, check your knowledge with a brief quiz.
10. Identifying the Stages of Addiction
How does someone become an addict? Does it happen overnight? This lesson goes over the different stages of drug use that lead to drug addiction, including how they progress from one to the next.
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Other chapters within the Health 102: Substance Abuse course
- Introduction to Substance Abuse
- Tobacco & Nicotine
- Psychomotor Stimulants
- Anti-anxiety & Sedative Hypnotics
- Antipsychotic Drugs, Antidepressants & Mood Stabilizers
- Lesser Known Drugs that Are Abused
- Classification of Drugs
- Inhaled Substances
- Anabolic Steroids
- Prescription & Over-the-Counter Drugs