← Dr. Garg Learning · free textbooks, games and practice
Pharmacology · Modules 1 to 15

See It: Pharmacology

See how drugs work. Each module has an animated walkthrough that shows each drug class acting at its target, so the effects, side effects and nursing checks make sense instead of being memorized, plus a Lab with simulators, patient cases and sorting games. Everything runs in your browser on a computer, tablet or phone. No login, nothing graded.

How to use this: open the walkthrough first and go at your own pace with the arrow keys or Next. Then open the Lab: move the sliders, give the drugs, and work the patient cases. Use the tools bar at the top of each page to pause the animations, slow them down, have the text read aloud, or get a written description of each picture. For learning only. Not medical advice and not a dosing reference.

Module 1 Pharmacokinetics: how the body handles drugs

Absorption, distribution, metabolism and excretion, half-life, and why drug levels rise and fall.

Module 2 Pharmacodynamics: how drugs act on the body

Receptors, agonists and antagonists, dose-response curves, tolerance, interactions and adverse reactions.

Module 3 Autonomic nervous system drugs

Drugs that push or block the sympathetic and parasympathetic systems, receptor by receptor.

Module 4 Psychiatric and sleep drugs

Anxiety, sleep, depression, bipolar disorder, psychosis and ADHD drugs, seen at the synapse.

Module 5 Neurologic drugs and anesthesia

Seizures, Parkinson and Alzheimer disease, migraine, muscle relaxants and anesthesia.

Module 6 Pain, inflammation and immune-modifying drugs

Opioids and naloxone, NSAIDs and acetaminophen, steroids, gout and arthritis drugs.

Module 7 Diuretics and antihypertensives

How drugs lower blood pressure through the heart, the vessels and the kidneys.

Module 8 Heart failure, angina, arrhythmia and lipid drugs

Drugs for a weak heart, chest pain, abnormal rhythms and high cholesterol.

Module 9 Anticoagulants, antiplatelets and blood drugs

Heparins, warfarin, DOACs, antiplatelets, clot busters, and drugs that build blood.

Module 10 Respiratory and allergy drugs

Rescue and controller inhalers, steroids, allergy, cold and cough drugs, and inhaler technique.

Module 11 Gastrointestinal drugs

Acid reducers, stomach protectors, antiemetics, laxatives and antidiarrheals.

Module 12 Endocrine and reproductive drugs

Insulin and diabetes drugs, thyroid, adrenal, bone and reproductive hormones.

Module 13 Anti-infective drugs

Antibiotics, TB drugs, antifungals and antivirals, with what the nurse monitors and teaches.

Module 14 Cancer and immunosuppressant drugs

How chemotherapy, targeted and immune therapies work, and managing their side effects.

Module 15 Medication safety, dosage calculation and toxicology

Giving medicines safely, doing the math, and reversing poisonings with antidotes.