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Pharmacology Flashcards: Free Nursing Drug Class Set

Intermediate Level
🔬Science

Learn drug classes the way nursing exams ask about them: mechanism, example, key adverse effect, monitoring and antidote.

Complete Guide to Pharmacology

Pharmacology has more facts per page than almost any other course in nursing, but they follow a pattern. Drugs come in classes, a class shares a mechanism, and a mechanism predicts the main adverse effects. Exams then ask the same four things about each class: how it works, one example, what goes wrong, and what the nurse monitors or teaches.

This page gives you a free starter set built on that pattern: pharmacology principles and naming stems, the major cardiovascular, anticoagulant, pain and CNS, endocrine, GI and respiratory drugs, the main antibiotic groups, and the antidotes every nurse should know. There are no dosages on purpose. Doses change and belong in your drug reference.

The cards were checked against an open nursing pharmacology textbook. Use them as the first layer, then paste your own course drug list into the generator so your deck matches what your instructor tests. Spaced repetition handles the volume: cards you keep missing come back sooner.

Learning Roadmap for Pharmacology

1

Principles and naming stems

Week 1

ADME, half-life, therapeutic index and the stem endings that identify a class.

2

One class at a time

Weeks 2 to 4

Mechanism, example, key adverse effect, nursing priority for each class in your unit.

3

Antidotes and monitoring labs

Week 5

Match each high-risk drug with its antidote or lab (INR, aPTT, potassium, levels).

4

Application questions

Week 6

Switch to scenario cards and mixed review before the exam.

Key Concepts You'll Master

Drug class stems (-pril, -olol, -statin)
ACE inhibitors and ARBs
Beta blockers
Diuretics
Warfarin and heparin
Opioids and antidotes
Insulin and metformin
Antibiotic classes
Illustration of capsules, a pill bottle, a molecule and a shield around a flashcard

Free pharmacology flashcards: 38-card starter set

Pharmacology exams ask the same four things about each drug class: how it works, one example, the main adverse effect, and what the nurse watches or teaches. Each card below answers those four. There are no doses on purpose. Doses change and belong in your drug reference. These cards are for learning, not for patient care decisions.

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Principles and naming (5)

What does ADME stand for?
Absorption, distribution, metabolism (mostly in the liver) and excretion (mostly through the kidneys). It describes what the body does to a drug.
What is the first-pass effect?
An orally given drug is absorbed from the gut and passes through the liver before reaching the systemic circulation, where part of it is metabolised. It is why some drugs need much higher oral than IV amounts or cannot be given orally.
What is a narrow therapeutic index? Name examples.
A small difference between an effective and a toxic level, so blood levels are monitored. Examples: digoxin, lithium, warfarin, phenytoin, theophylline, aminoglycosides.
What does half-life tell you?
The time for the drug concentration in the body to fall by half. It guides dosing interval and how long until a steady state is reached or the drug is cleared.
Common stem endings and what they mean
-pril = ACE inhibitor; -sartan = angiotensin receptor blocker; -olol = beta blocker; -statin = HMG-CoA reductase inhibitor; -prazole = proton pump inhibitor; -azepam / -azolam = benzodiazepine; -cillin = penicillin; -floxacin = fluoroquinolone; -mab = monoclonal antibody.

Cardiovascular drugs (10)

ACE inhibitors (lisinopril)
Block conversion of angiotensin I to angiotensin II, lowering blood pressure. Key adverse effects: dry cough, hyperkalemia, angioedema. Not for use in pregnancy.
Angiotensin receptor blockers (losartan)
Block the angiotensin II receptor. Used when ACE inhibitors cause a cough. Watch for hyperkalemia and hypotension; contraindicated in pregnancy.
Beta blockers (metoprolol)
Block beta-adrenergic receptors: lower heart rate and contractility. Key adverse effects: bradycardia, hypotension, fatigue; can mask signs of hypoglycemia. Do not stop abruptly.
Calcium channel blockers (amlodipine, verapamil)
Block calcium entry into vascular smooth muscle and the heart. Amlodipine (dihydropyridine) mainly vasodilates and can cause ankle edema. Verapamil and diltiazem also slow the heart rate; verapamil commonly causes constipation.
Loop diuretics (furosemide)
Block the Na-K-2Cl transporter in the thick ascending limb of the loop of Henle. Key adverse effects: hypokalemia, dehydration, ototoxicity. Weigh the patient daily.
Thiazide diuretics (hydrochlorothiazide)
Act on the distal convoluted tubule. Key adverse effects: hypokalemia, hyponatremia, hyperglycemia, hyperuricemia.
Potassium-sparing diuretic (spironolactone)
Aldosterone antagonist. Key adverse effect: hyperkalemia (especially with ACE inhibitors); gynecomastia with spironolactone.
Statins (atorvastatin)
Inhibit HMG-CoA reductase, lowering LDL cholesterol. Key adverse effects: muscle pain (myopathy, rarely rhabdomyolysis) and elevated liver enzymes. Report unexplained muscle pain.
Digoxin: mechanism, toxicity signs and key nursing check
Inhibits the Na+/K+ ATPase pump: stronger contractions and slower AV conduction. Narrow therapeutic index. Toxicity: nausea, vomiting, visual changes (yellow-green halos), arrhythmias. Low potassium raises the risk. Check the apical pulse for a full minute before giving it.
Nitroglycerin
Vasodilator that reduces preload (and myocardial oxygen demand) in angina. Key adverse effects: headache, hypotension, dizziness. Sit down before taking it.

Blood thinners and antidotes (4)

Warfarin: mechanism, monitoring and antidote
Blocks synthesis of vitamin K-dependent clotting factors (II, VII, IX, X). Monitor INR. Key adverse effect: bleeding. Antidote: vitamin K. Keep vitamin K intake in leafy greens consistent.
Heparin: mechanism, monitoring and antidote
Potentiates antithrombin, inactivating thrombin and factor Xa. Monitor aPTT (or anti-Xa for some protocols). Key adverse effects: bleeding, heparin-induced thrombocytopenia. Antidote: protamine sulfate.
Aspirin as an antiplatelet
Irreversibly inhibits COX-1, reducing thromboxane A2 and platelet aggregation for the life of the platelet. Key adverse effects: GI bleeding, tinnitus in toxicity. Avoid in children with viral illness (Reye syndrome).
Match the antidote: opioid, benzodiazepine, acetaminophen, warfarin, heparin
Opioid = naloxone. Benzodiazepine = flumazenil. Acetaminophen = acetylcysteine. Warfarin = vitamin K. Heparin = protamine sulfate. Digoxin toxicity = digoxin immune fab.

Pain, CNS and mental health drugs (7)

Opioids (morphine)
Mu-receptor agonists. Key adverse effects: respiratory depression, sedation, constipation, nausea. Assess respiratory rate and sedation level; give a bowel regimen. Antidote: naloxone.
NSAIDs (ibuprofen)
Inhibit COX enzymes, reducing prostaglandins (pain, inflammation, fever). Key adverse effects: GI bleeding and ulcers, kidney injury, raised blood pressure. Take with food.
Acetaminophen
Analgesic and antipyretic without meaningful anti-inflammatory effect. Key adverse effect: liver injury in overdose or with heavy alcohol use. Check combination products for hidden acetaminophen.
Benzodiazepines (lorazepam, diazepam)
Enhance GABA-A activity: anxiolytic, sedative, anticonvulsant. Key adverse effects: sedation, falls, respiratory depression with opioids or alcohol, dependence. Do not stop suddenly after long use.
SSRIs (sertraline)
Block serotonin reuptake. Full effect takes several weeks. Key adverse effects: sexual dysfunction, GI upset, hyponatremia in older adults; serotonin syndrome with other serotonergic drugs; monitor for suicidal thoughts early in treatment, especially in young people.
Typical antipsychotics (haloperidol)
Block dopamine D2 receptors. Key adverse effects: extrapyramidal symptoms, tardive dyskinesia, and the rare neuroleptic malignant syndrome (fever, rigidity, altered mental status).
Lithium: therapeutic index, toxicity and teaching
Mood stabiliser with a narrow therapeutic index; levels are monitored (a typical reference range is about 0.6 to 1.2 mEq/L, which varies by lab). Toxicity: coarse tremor, vomiting, diarrhea, confusion. Keep fluids and sodium intake steady; dehydration and NSAIDs raise levels.

Endocrine, GI and respiratory drugs (7)

Insulin: effect and key adverse effect
Lowers blood glucose by moving glucose into cells. The key adverse effect is hypoglycemia (shaky, sweaty, confused). Rapid-acting insulin is timed with meals; long-acting insulin glargine is not mixed with other insulins in a syringe.
Metformin: mechanism and key adverse effects
Lowers hepatic glucose production and improves insulin sensitivity. Key adverse effects: GI upset; lactic acidosis is rare but serious, especially with kidney impairment. Often held around iodinated contrast per facility policy.
Levothyroxine
Replaces thyroid hormone (T4). Take on an empty stomach, with water, at the same time each day. Too much causes hyperthyroid symptoms (palpitations, weight loss, heat intolerance).
Corticosteroids (prednisone)
Anti-inflammatory and immunosuppressive. Key adverse effects with long-term use: hyperglycemia, infection risk, osteoporosis, fluid retention, adrenal suppression. Never stop abruptly; taper.
Proton pump inhibitors (omeprazole)
Block the H+/K+ ATPase in gastric parietal cells, reducing acid. Long-term risks: C. difficile infection, fractures, low magnesium and B12.
Albuterol: class, use and adverse effects
Short-acting beta-2 agonist: bronchodilation in asthma and COPD. Key adverse effects: tachycardia, tremor, low potassium. Use it as the rescue inhaler.
Ondansetron
5-HT3 receptor antagonist antiemetic. Key adverse effects: headache, constipation, QT prolongation.

Antibiotics (5)

Penicillins (amoxicillin)
Beta-lactams that block bacterial cell wall synthesis. Key adverse effects: hypersensitivity up to anaphylaxis, GI upset, rash. Always ask about prior allergy.
Fluoroquinolones (ciprofloxacin)
Inhibit bacterial DNA gyrase and topoisomerase IV. Key adverse effects: tendon rupture, QT prolongation, CNS effects. Avoid taking with calcium or antacids.
Aminoglycosides (gentamicin)
Bind the 30S ribosomal subunit. Key adverse effects: nephrotoxicity and ototoxicity. Narrow therapeutic index: monitor levels and kidney function.
Macrolides (azithromycin)
Bind the 50S ribosomal subunit and block protein synthesis. Key adverse effects: GI upset and QT prolongation.
Vancomycin
Inhibits cell wall synthesis; used for MRSA and, orally, for C. difficile. Rapid IV infusion can cause "red man" infusion reaction (flushing), so infuse slowly. Also monitor kidney function.

How to study pharmacology

Pharmacology has more facts per page than almost any other nursing course, so group drugs by class and learn the class pattern before the individual drug. One class has one mechanism and a short list of shared adverse effects.

  1. 1
    Week 1 of each unit

    Learn the class: the stem ending, the mechanism and the shared adverse effects. One card per class, not per drug.

  2. 2
    Week 2

    Add the exceptions: the one drug in the class with a different adverse effect, and the monitoring lab (INR, aPTT, potassium, drug level).

  3. 3
    Week 3

    Switch to application cards: "A patient on a loop diuretic has muscle cramps. Which lab do you check?" Application is how NCLEX-style tests ask.

  4. 4
    Before the exam

    Mixed deck, quiz mode. Re-write any card you missed twice as a comparison ("Heparin vs warfarin") rather than re-reading it.

Spaced repetition schedules each card to return just before you would forget it, so reviews get shorter as the exam gets closer. Cards you miss come back sooner.

Turn your drug list or lecture slides into pharmacology flashcards

  • ✓Paste the drug table from your lecture or textbook chapter. Ask for "class, mechanism, adverse effect, nursing priority" so every card has the same structure.
  • ✓Use your own program's drug list. Programs differ on which drugs they test, and the generator only needs your text.
  • ✓Check every generated card against your drug reference or instructor before relying on it. Never use flashcards to decide a dose.
Generate cards from a topic or notesTurn a PDF into flashcards

Learning Tips for Pharmacology

1

Learn the Class First

Stem ending, mechanism and shared adverse effects come before the individual drug.

2

Pair Drugs with Labs

Warfarin means INR, heparin means aPTT, digoxin means potassium and apical pulse.

3

Use Comparison Cards

Heparin vs warfarin, loop vs thiazide: contrasts are how exams make you choose.

How to Use Flashcards for Pharmacology

1

Start with the Basics

Review the flashcard deck to familiarize yourself with key concepts and terminology.

2

Use Spaced Repetition

Our system schedules reviews at optimal intervals to maximize long-term retention.

3

Test Yourself

Use quiz mode to actively recall information and identify areas that need more practice.

4

Practice Daily

Consistent 15-20 minute daily sessions are more effective than long occasional study periods.

Frequently Asked Questions

Cardiovascular drugs (ACE inhibitors, beta blockers, diuretics, digoxin), anticoagulants, opioids, insulin and diabetes drugs, corticosteroids, and the main antibiotic classes are tested most. Your course drug list sets the priorities.
Yes. Paste your drug table or lecture slides into the generator and ask for class, mechanism, adverse effect and nursing priority on each card.
Learn the class first (stem ending, mechanism, shared adverse effects), then one example drug and its exception. A card per class, plus cards that compare similar classes, is more efficient than a card per drug.
No. Doses change, differ by patient and source, and belong in your drug reference. These cards teach mechanism, adverse effects, monitoring and antidotes.
They cover the highest-yield classes as a starting point. The NCLEX-RN test plan gives Pharmacological and Parenteral Therapies roughly 13 to 19% of items, so build the rest of your deck from your course drug list and test with application-style questions.
Yes. The starter set is free to read and to open in the study app without signing up. Generating your own decks is free to try; unlimited full decks and document import are part of Pro.
They are written at nursing and allied-health level. For pharmacy or medical pharmacology, use the generator on your lecture notes so the cards cover receptor-level detail and drug interactions.

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Sources and review

Starter cards are independent study aids, not medical advice or official exam content, and were checked against the sources below. Always confirm values and procedures with your textbook, instructor and local policy.

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