Section outline

  • Introduction

    This module introduces the core principles that shape all of pharmacology. We’ll explore three main principles:

    • How the body maintains balance (homeostasis)
    • How drugs move through the body (pharmacokinetics)
    • How drugs produce their effects (pharmacodynamics)
    Understanding these foundational principles will help you predict drug actions, anticipate side effects, and apply safe, informed practices in healthcare. These concepts are the building blocks you’ll use throughout the rest of the course. 


    Image: "Pill" by Stock Catalog licensed CC BY 2.0

    Learning Objectives

    Upon completion of this module, you will be able to:
    1. Describe and characterize the major disciplines within the field
    2. Define pharmacokinetics
    3. Discuss the 4 principles of pharmacokinetics: absorption, distribution, metabolism, and excretion of drugs in the human body
    4. Identify the primary locations in the body where each pharmacokinetic phase has its effect on the drug
    5. Discuss conditions that could alter the pharmacokinetic process and the outcomes that could result
    6. Discuss how the induction or inhibition of liver enzymes can impact bioavailability 
    7. Define pharmacodynamics
    8. Discuss regulatory guidelines from agencies
    9. Explain the therapeutic index and potential adverse effects of drugs in the body
    10. Define key terms associated with pharmacodynamics
    11. Compare and contrast agonists and antagonists
    12. Discuss the dose-response and time-response curves
    13. Discuss how the therapeutic index affects drug safety
    14. Identify patient factors that can influence drug outcomes
    15. Digital Skill: Use online drug information resources and explain how these tools can help or harm patients seeking medication information.

    To achieve these objectives: 

    1. Read the Module 1 Introduction
    2. Read chapter 1. Introduction and Homeostasis, 2. Drug Actions on the Body: Pharmacodynamics, and 3. Body Actions on the Drug: Pharmacokinetics  in Introduction to Pharmacology - aligns with computer proficiency
    3. Complete the Module 1 Discussion Forum - aligns with computer proficiency, internet navigation, digital communication, and collaboration
    4. Complete the Module 1 Quiz - aligns with computer proficiency 

    Note the check boxes to the right that help you track your progress: some are automatic, and some are manual. 

    Module Pressbooks Resources and Activities

    You will find the following resources and activities in this module at the Pressbooks website. Click on the links below to access or complete each item.

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