Western Governors University

D398: Introduction to Pharmacology

A WGU course that gives non-prescribing health professionals the medication knowledge to understand drug classes, effects, safety and regulation.

Updated October 2026 · 5 min read

Introduction to Pharmacology is a Western Governors University course used in the Bachelor of Science in Health and Human Services and Health Information Management.

WGU says it introduces medication and supplement regulations and safety protocols, and gives an overview of the use, benefits, effects and contraindications of commonly used drugs for conditions of the cardiovascular, respiratory, endocrine, nervous and renal body systems.

It also covers anti-infective, antineoplastic and psychotropic drugs, and dietary supplements and their effects on the body. The course carries 3 competency units and sits in the sixth term of the Health and Human Services standard plan. The difficulty is volume: there are many drug classes, names and effects, and you need an organized way to learn them.

Course at a Glance

ItemDetails
UniversityWestern Governors University (WGU)
Course codeD398
LevelUndergraduate
ProgramsB.S. Health and Human Services; B.S. Health Information Management
Credit3 competency units
Subject areaPharmacology, medication safety, regulation
Typical workExplaining drug classes, effects, contraindications and safe use

What D398 Covers

Competency (WGU wording, summarized)What it means in practice
Examine medication safety protocols and regulationsHow medicines are regulated and the practices that prevent harm
Identify common drugs used to treat acute and chronic conditions of the cardiac, respiratory, gastrointestinal, endocrine and renal systems, and their effectsLearning major drug classes, what they treat and how they act
Identify anti-infective, antineoplastic and psychotropic drugs and supplements, and their effects on the bodyUnderstanding antibiotics, cancer drugs, mental health medicines and supplements

Key Concepts Explained

Learn by Class, Not by Single Drug

Drugs in a class share a mechanism and often similar effects and cautions. Learning the class first lets you predict the rest. Many generic names carry a clue: statins end in "-statin", beta blockers often end in "-olol", and ACE inhibitors often end in "-pril".

Example: An ACE inhibitor relaxes blood vessels and lowers blood pressure. A typical caution is that these drugs are not used in pregnancy, and a known side effect is a dry cough. By learning those three facts for the class, you can discuss any drug in it. This is for study only and is not medical advice.

Contraindications and Interactions

A contraindication is a reason not to use a drug in a particular person. Interactions occur when one substance changes the effect of another, including some supplements. Safe use depends on knowing the patient's conditions, other medicines and allergies.

Medication Safety

Safety protocols reduce errors. Common principles include verifying the right patient, drug, dose, route and time, keeping accurate records, and reporting adverse effects. Regulation determines who may prescribe, supply and monitor medicines.

Typical Assignments and How to Approach Them

Check your own instructions for the format. Typical forms are below.

Task typeWhat it testsHow to approach it
Drug class summaryKnowing use, effect and cautionsUse a table: class, example drugs, conditions, effects, cautions
Patient scenarioApplying knowledge to a caseLink the patient's conditions to drug choices and contraindications
Regulation and safety explanationUnderstanding the systemDescribe who is responsible for each step and why

Where Students Get Stuck

Making Pharmacology Notes That Work

Build one table per body system with the same columns each time: class, example drugs, what it treats, how it works in one line, main effects, key cautions. Consistent columns make revision fast and reveal patterns across systems.

Add a short "why" to every entry. If you know that a bronchodilator opens airways, you can remember why it is used in breathing conditions. Understanding the reason is more durable than learning a list and helps in scenario tasks.

Common Question Patterns

Scenario questions often give a patient with one or two conditions and ask which drug class is relevant and what to watch for. Work through three steps: identify the condition, name the class used to treat it, then state the key effect and a caution relevant to this patient.

Regulation questions usually ask who is responsible for each step, such as approval, prescribing, supply and monitoring of adverse effects. Keep a list of roles and responsibilities and you can answer most of them quickly.

Study Tips for D398

How We Help with D398

Send the topic list, task and rubric. A health writer can produce a tabulated study summary, explain classes and safety principles, or review your own notes and answers for accuracy.

GradeEssays is independent and not affiliated with WGU. Our help is for study and reference, not medical advice: learn the material, then complete and submit your own work under WGU's academic integrity policy. Orders are written from scratch with free revisions within the scope of your original request and a full refund if late.

Get Your D398 Notes Sorted

Share the task and your notes. We prepare a clear study summary of the drug classes and safety points you need.

Start My D398 Help

Free revisions · Full refund if late · Written from scratch for your order

Frequently Asked Questions

Is D398 only for nurses?

No. WGU uses it for non-nursing health programs such as Health and Human Services and Health Information Management. Nursing degrees have their own pharmacology courses.

How many competencies does it assess?

Three, covering safety and regulation, common drugs by body system, and anti-infective, antineoplastic, psychotropic drugs and supplements.

Will I learn to prescribe?

No. The course builds understanding of medications, not prescribing authority.

How should I memorize drug names?

Learn classes and mechanisms first, then examples. Name endings give useful clues.

Why are contraindications so important?

They define when a drug should not be used, which is central to safety.

Can you take the assessment for me?

No. We provide study support and feedback. You complete and submit your own work.