Free Pharmacology Course
Pharmacology Essentials
Understand pharmacology by tracing what a medicine does and how your body processes it. Enroll in this free pharmacology course to read drug information more carefully and recognize why dosage checks and safety limits matter.
About this course
This free pharmacology course introduces pharmacology essentials through a practical question: why can the same medicine affect people differently? You begin with drug names, labels, and routes before studying how the body absorbs, distributes, and removes medicines. For beginners, basic anatomy and physiology knowledge helps you follow these pharmacokinetics lessons. You also learn how medicines act on receptors, giving drug effects and interactions a clearer scientific context.
Medication safety training connects those concepts to unit conversions, dose calculations, and checks that reduce errors. You compare major drug classes through their uses, effects, and monitoring needs, then consider age, organ function, and other factors that change risk. The course offers foundations for further healthcare study and careful reading of drug information. It does not authorize you to prescribe, administer medicines independently, or replace supervised clinical training.
Course outline
Foundations of Pharmacology: Terminology, Drug Sources, and Regulatory Basics
In this module, you'll learn core pharmacology terms, chemical, generic and brand names, drug sources, routes and dosage forms, how the FDA approves drugs, and reading a drug label.
Pharmacokinetics: How the Body Processes Drugs
In this module, you'll learn how drugs are absorbed, distributed, metabolized and excreted, what bioavailability and first-pass metabolism mean, half-life, therapeutic index, and how age and organ function matter.
Pharmacodynamics: Mechanisms of Drug Action
In this module, you'll learn how drugs act on receptors as agonists or antagonists, potency versus efficacy, the therapeutic window, tolerance and dependence, drug interactions, and types of adverse reactions.
Dosage Calculations and Medication Administration Safety
In this module, you'll learn the rights of medication administration, unit conversions, oral, IV and weight-based dosage calculations, pediatric and geriatric adjustments, high-alert drugs, and how to prevent errors.
Central Nervous System Pharmacology
In this module, you'll learn opioid and non-opioid pain relievers, DEA schedules, sedatives, anesthetics, antidepressants, antipsychotics, anticonvulsants, drugs for Parkinson's and Alzheimer's, and how to educate patients.
Cardiovascular and Renal Pharmacology
In this module, you'll learn the main blood pressure drug classes, diuretics, antiarrhythmics, blood thinners, statins, heart failure drugs, kidney-related dose adjustments, and what to monitor for each.
Anti-Infective, Endocrine, and Respiratory Pharmacology
In this module, you'll learn antibiotic classes and resistance, antivirals and antifungals, insulin and diabetes drugs, thyroid and steroid hormones, asthma inhalers, antihistamines, and common GI medications.
Regulatory Frameworks, Special Populations, and Emerging Practice
In this module, you'll learn FDA and DEA compliance, drug safety in pregnancy, children and older adults, polypharmacy risks, pharmacogenomics, MedWatch reporting, and AI and telehealth tools in medication management.
Get access to the complete curriculum once you enroll in the course
Frequently Asked Questions
What background helps me follow this pharmacology course?
How does the course distinguish pharmacokinetics from pharmacodynamics?
Will I learn to interpret medication labels?
What dosage calculation skills are taught in this free course?
Does the pharmacology training explain drug interactions?
Which cardiovascular medicines are included in the lessons?
How are antibiotics and resistance addressed in the course?
Will I study how age and organ function affect drug handling?
Does this course allow me to prescribe or administer medication?
How can these pharmacology foundations support further study?