Drug names and terms can feel like total gibberish at first, but our What Is Pharmacology? guide breaks it down super simply so you’re not lost before you even start.
Many nursing students feel overwhelmed by medication vocabulary — and that’s completely normal.
Pharmacology uses words that sound technical at first. But once you learn the common drug terms, everything becomes clearer.
Drug classes make more sense. Side effects feel predictable. And studying becomes much easier.
This list gives you 100 simple, common pharmacology terms you’ll see in class, on exams, and during clinicals.
Think of it as your quick-start pharm dictionary — short, simple, and easy to review.
How to Use This Drug Terms Guide
You don’t need to memorize all 50 terms at once. Your brain learns faster when you study a few ideas at a time.
These terms are meant to guide you, not stress you.
You can use them to make better drug cards, review practice questions, and understand class notes.
Here are simple ways to learn them:
- Study 5–7 terms per day.
- Write short, clear definitions in your own words.
- Add a quick example for each term.
- Review your list at the end of the week.
- Use practice questions to reinforce understanding.
If you’d like a clear study routine you can follow, you can read our full guide on How to Study Pharmacology here.
Small steps work best.
And yes — even learning a few terms each day builds strong pharm confidence over time.
Core Pharmacology Basics
These are the essential terms you’ll see everywhere in pharmacology. Once you understand these, the rest becomes much easier.
1. Drug
A substance that changes how the body works.
Example: Insulin lowers blood sugar.
2. Medication
A drug used to treat or prevent a condition.
Example: Acetaminophen reduces fever.
3. Generic Name
The official drug name. Always lowercase.
Example: ibuprofen.
4. Brand Name
The company’s name for the drug. Starts with a capital letter.
Example: Advil®.
5. Indication
The reason a drug is given.
Example: Lisinopril is used for high blood pressure.
6. Contraindication
When a drug should not be given.
Example: Avoid ibuprofen in kidney injury.
7. Side Effect
A predictable but unwanted effect.
Example: Drowsiness with antihistamines.
8. Adverse Effect
A harmful reaction that is more serious than a side effect.
Example: Angioedema with ACE inhibitors.
9. Therapeutic Effect
The desired, helpful action of the drug.
Example: Pain relief from morphine.
10. Dose / Dosage
How much of the drug is given and how often.
Example: Acetaminophen 650 mg every 6 hours.
Pharmacokinetics — What the Body Does to the Drug
Pharmacokinetics explains how the body handles a drug from the moment you take it until the moment it leaves.
These terms show up in class, exams, and clinicals — and they help you understand why medications work the way they do.
11. Absorption
How the drug enters the bloodstream.
Example: Oral meds absorb through the stomach or intestines.
12. Distribution
How the drug moves through the body.
Example: Some drugs collect in fat tissue or muscle.
13. Metabolism
How the body breaks down the drug.
Example: The liver breaks down many medications.
14. Excretion
How the body removes the drug.
Example: Kidneys remove most medications through urine.
15. Half-Life
The time it takes for half the drug to leave the body.
Example: A drug with a long half-life stays active longer.
16. Onset of Action
How long it takes for the drug to start working.
Example: IV meds have a fast onset.
17. Peak
When the drug reaches its strongest effect.
Example: Insulin peaks vary depending on the type.
18. Duration
How long the drug’s effect lasts.
Example: Long-acting insulin lasts up to 24 hours.
19. Bioavailability
The amount of drug that actually reaches the bloodstream.
Example: IV drugs have 100% bioavailability.
20. First-Pass Effect
The liver breaks down part of an oral drug before it reaches the bloodstream.
Example: Oral nitroglycerin is avoided due to strong first-pass effect.
Yes—your liver loves staying busy. Maybe a little too busy sometimes.
Pharmacokinetics Terms at a Glance
| Term | Simple Meaning | Example |
|---|---|---|
| Absorption | Drug enters blood | Oral meds absorb in GI |
| Distribution | Drug moves in body | Some store in fat |
| Metabolism | Body breaks drug down | Liver processes meds |
| Excretion | Drug leaves body | Kidney removes meds |
| Half-life | Time for half to leave | Long half-life = long effect |
| Onset | When drug starts working | IV acts fast |
| Peak | Strongest effect | Insulin peaks vary |
| Duration | How long it works | Long-acting insulin lasts longer |
| Bioavailability | How much enters blood | IV = 100% |
| First-pass | Liver reduces drug before effect | Oral nitroglycerin avoided |
Pharmacodynamics — What the Drug Does to the Body
Pharmacodynamics explains what the drug does once it reaches its target in the body.
These terms help you understand how medications create effects — both good and bad.
If you want to practice these ideas, our Nursing Drug Classification Quiz is a great place to start.
21. Receptor
A site in the body where the drug binds to work.
Example: Beta-blockers bind to beta-receptors in the heart.
22. Agonist
A drug that activates a receptor to produce an effect.
Example: Albuterol activates receptors to open the airways.
23. Antagonist
A drug that blocks a receptor and stops an action.
Example: Naloxone blocks opioid receptors.
24. Potency
How strong a drug is at a given dose.
Example: A small dose of fentanyl has strong effects.
25. Efficacy
How well a drug works at its best.
Example: Morphine has high efficacy for pain relief.
26. Therapeutic Index
The range between a safe dose and a dangerous dose.
Example: Digoxin has a narrow therapeutic index.
27. Toxic Level
When the drug amount becomes harmful.
Example: Too much acetaminophen can damage the liver.
28. Minimum Effective Concentration (MEC)
The lowest amount of drug needed to work.
Example: Below the MEC, seizure meds won’t prevent seizures.
29. Maximum Concentration (Cmax)
The highest level of drug found in the blood.
Example: Cmax is measured after medication peaks.
30. Plasma Drug Concentration
How much drug is in the bloodstream at a given time.
Example: Blood levels help check if a drug is safe or toxic.
And don’t worry — everyone starts mixing up “potency” and “efficacy.” It gets clearer with practice.
Pharmacodynamics Terms at a Glance
| Term | Simple Meaning | Example |
|---|---|---|
| Receptor | Where drug binds | Beta-receptors |
| Agonist | Activates receptor | Albuterol |
| Antagonist | Blocks receptor | Naloxone |
| Potency | Drug strength | Fentanyl |
| Efficacy | Max effect | Morphine |
| Therapeutic index | Safety range | Digoxin |
| Toxic level | Harmful amount | Too much acetaminophen |
| MEC | Minimum level to work | Seizure meds |
| Cmax | Highest level | After peak |
| Plasma concentration | Drug level in blood | Monitored for safety |
If you want more practice, try our Drug Side Effects and Interactions Quiz to see these terms in action.
Safety & Monitoring Terms You Must Know
Safety terms are some of the most important in pharmacology. These words show up in class, NCLEX questions, and real patient care.
31. High-Alert Medication
Drugs that have a higher chance of causing harm if given incorrectly.
Example: Insulin, heparin, and opioids.
Remember this: Check twice.
32. Black Box Warning
A serious safety warning from the FDA.
Example: Some antidepressants have warnings about suicide risk.
33. Allergy
A harmful immune reaction to a drug.
Example: Hives after taking penicillin.
34. Adverse Drug Reaction (ADR)
Any harmful or unexpected reaction.
Example: Rash, swelling, or difficulty breathing.
35. Medication Error
Any mistake in ordering, giving, or documenting a drug.
Example: Giving the wrong dose or wrong patient.
36. Toxicity
Dangerous levels of a drug in the body.
Example: Too much digoxin can cause vision changes.
37. Serum Drug Levels
Blood tests that measure drug concentration.
Example: Checking vancomycin levels before giving the next dose.
38. Narrow Therapeutic Range
A small window between a safe dose and a toxic dose.
Example: Lithium and digoxin.
Remember this: Check twice.
39. Overdose
Taking too much of a drug, accidentally or intentionally.
Example: Too much acetaminophen can damage the liver.
40. Antidote
A medication that reverses another drug’s effect.
Example: Naloxone reverses opioid overdose.
And yes — your future self will thank you for learning these early. They show up everywhere.
Safety Terms at a Glance
| Term | Simple Meaning | Example |
|---|---|---|
| High-alert med | Higher risk of harm | Insulin |
| Black box warning | Serious FDA warning | Antidepressants |
| Allergy | Immune reaction | Penicillin |
| ADR | Harmful reaction | Rash/swelling |
| Medication error | Any drug mistake | Wrong dose |
| Toxicity | Dangerous drug level | Digoxin |
| Serum levels | Blood drug test | Vancomycin |
| Narrow range | Small safe window | Lithium |
| Overdose | Too much drug | Acetaminophen |
| Antidote | Reversal drug | Naloxone |
If you’d like to test yourself after this section, you can try our High-Risk Drug Safety Quiz to check your understanding.
Routes, Forms & Administration Terms
These terms describe how medications enter the body. Knowing them helps you understand onset time, patient teaching, and safe administration.
If you want to learn more about medication administration routes, you can read our simple guide on Routes of Drug Administration to see how each medication enters the body.
41. PO (Oral)
Taken by mouth and swallowed.
Example: Most antibiotics are PO.
42. IV (Intravenous)
Given directly into the vein. Works fastest.
Example: IV fluids and pain medications.
43. IM (Intramuscular)
Injected into the muscle.
Example: Vaccines are often IM.
44. Subcutaneous (SubQ)
Injected into the fatty tissue.
Example: Insulin is usually SubQ.
45. Sublingual (SL)
Placed under the tongue to absorb quickly.
Example: Nitroglycerin tablets.
46. Topical
Applied to the skin surface.
Example: Hydrocortisone cream.
47. Transdermal
Slow release through a skin patch.
Example: Fentanyl patches.
48. Inhalation
Breathed into the lungs.
Example: Asthma inhalers.
49. PR (Rectal)
Given into the rectum.
Example: Some anti-nausea or fever meds.
50. Drug Forms (Tablet, Capsule, Suspension, Solution)
Different ways medications are made for use.
Example: Liquid suspensions help children who can’t swallow pills.
Yes — pharm loves giving us 12 different ways to deliver one medication. Keeps things interesting.
Routes of Administration at a Glance
| Route | Meaning | Speed | Example |
|---|---|---|---|
| PO | Swallowed | Slow | Antibiotics |
| IV | In the vein | Fastest | IV fluids |
| IM | In the muscle | Moderate | Vaccines |
| SubQ | Fat tissue | Slow–moderate | Insulin |
| SL | Under tongue | Fast | Nitroglycerin |
| Topical | On the skin | Local effect | Creams |
| Transdermal | Patch | Slow, steady | Fentanyl |
| Inhalation | Lungs | Fast | Inhalers |
| PR | Rectal | Variable | Anti-nausea meds |
Drug Class & Mechanism Terms
These drug classes show up everywhere — in lectures, NCLEX questions, and real clinical practice. Once you learn what each group does, pharmacology gets much easier.
If you want to test yourself, try our Most Common NCLEX Drug Categories Quiz after this section.
51. ACE Inhibitor
Lowers blood pressure by relaxing blood vessels.
Example: Lisinopril.
52. ARB (Angiotensin Receptor Blocker)
Also lowers blood pressure but works differently from ACE inhibitors.
Example: Losartan.
53. Beta-Blocker
Slows the heart and reduces blood pressure.
Example: Metoprolol.
54. Calcium Channel Blocker
Relaxes arteries to lower blood pressure.
Example: Amlodipine.
55. Diuretic
Helps remove extra fluid from the body.
Example: Furosemide.
56. Loop Diuretic
A strong diuretic that works in the loop of Henle.
Example: Furosemide.
57. Thiazide Diuretic
A milder diuretic used for long-term blood pressure control.
Example: Hydrochlorothiazide.
58. Anticoagulant
Prevents blood clots from forming.
Example: Warfarin.
59. Antiplatelet
Stops platelets from sticking together.
Example: Aspirin.
60. Thrombolytic
Dissolves existing blood clots.
Example: Alteplase.
61. Statin
Lowers cholesterol levels.
Example: Atorvastatin.
62. NSAID (Non-Steroidal Anti-Inflammatory Drug)
Reduces pain, fever, and inflammation.
Example: Ibuprofen.
63. Opioid
Treats severe pain by binding to opioid receptors.
Example: Morphine.
64. Antihistamine
Helps with allergies by blocking histamine.
Example: Diphenhydramine.
65. Antipyretic
Reduces fever.
Example: Acetaminophen.
Your future self will thank you for learning these. pharm becomes 10x easier once you know the main drug families.
Drug Classes at a Glance
| Class | Simple Meaning | Example |
|---|---|---|
| ACE inhibitor | Lowers BP | Lisinopril |
| ARB | Lowers BP | Losartan |
| Beta-blocker | Slows heart | Metoprolol |
| CCB | Relaxes arteries | Amlodipine |
| Diuretic | Removes fluid | Furosemide |
| Anticoagulant | Prevents clots | Warfarin |
| Antiplatelet | Stops platelets | Aspirin |
| Thrombolytic | Breaks clots | Alteplase |
| Statin | Lowers cholesterol | Atorvastatin |
| NSAID | Pain + fever relief | Ibuprofen |
| Opioid | Strong pain relief | Morphine |
| Antihistamine | Allergy relief | Diphenhydramine |
| Antipyretic | Fever reducer | Acetaminophen |
Medication Order & Documentation Terms
These terms help you understand medication orders, charting, and the timing of drug administration.
You will see them in clinicals, exams, and real practice.
66. MAR (Medication Administration Record)
A legal record of all medications given.
Example: Nurses document each dose on the MAR.
67. PRN
Given as needed.
Example: PRN pain medication.
68. STAT
Give immediately.
Example: STAT epinephrine in an emergency.
69. TID
Three times a day.
Example: Antibiotic TID.
70. BID
Twice a day.
Example: Metformin BID.
71. QID
Four times a day.
Example: Eye drops QID.
72. HS
At bedtime.
Example: Sedative HS.
73. Q4H
Every four hours.
Example: Vital signs Q4H.
74. Q6H
Every six hours.
Example: Pain meds Q6H.
75. Standing Order
An order that stays active until changed.
Example: Daily senna bowel regimen.
76. Verbal Order
An order given verbally and documented later.
Example: Provider gives a verbal order in emergencies.
77. Discontinue (DC)
Stop the medication.
Example: DC antibiotics when infection clears.
78. Titrate
Adjust dose up or down based on response.
Example: Titrate oxygen to maintain SpO₂.
79. Hold Dose
Do not give the medication at that time.
Example: Hold beta-blocker if heart rate is too low.
80. Dispense
Provide the medication for patient use.
Example: Pharmacy dispenses a 30-day supply.
Yes — the abbreviations look confusing at first. By week two of clinicals, you’ll read them like a second language.
Documentation & Order Terms at a Glance
| Term | Meaning | Example |
|---|---|---|
| MAR | Medication record | Document each dose |
| PRN | As needed | PRN pain med |
| STAT | Immediately | STAT epinephrine |
| TID | Three times daily | Antibiotic TID |
| BID | Twice daily | Metformin BID |
| QID | Four times daily | Eye drops |
| HS | Bedtime | Sleep aid |
| Q4H | Every 4 hours | Vital signs |
| Q6H | Every 6 hours | Pain meds |
| Standing order | Active until changed | Daily meds |
| Verbal order | Spoken instruction | Emergency order |
| Discontinue | Stop medication | DC antibiotics |
| Titrate | Adjust dose | Oxygen |
| Hold dose | Skip dose | Low HR |
| Dispense | Provide med | Pharmacy |
If you want to practice these, try our Drug Administration Techniques Quiz after this section.
Patient Response & Monitoring Terms
These terms describe how patients respond to medications. You’ll use them during assessments, clinical notes, and NCLEX questions.
81. Therapeutic Response
The drug works as expected.
Example: Blood pressure improves after taking antihypertensives.
82. Non-Therapeutic Response
The drug does not produce the desired effect.
Example: Pain remains high after giving medication.
83. Compliance
The patient takes the medication correctly.
Example: Taking daily blood pressure meds as prescribed.
84. Non-Adherence
The patient does not take the medication correctly.
Example: Skipping insulin doses.
85. Tolerance
The body needs more of the drug to get the same effect.
Example: Needing higher pain medication doses over time.
86. Dependence
The body becomes used to the drug and may need it to function normally.
Example: Dependence on benzodiazepines.
87. Withdrawal
Symptoms that appear when the drug is stopped suddenly.
Example: Shaking or anxiety after stopping alcohol.
88. Rebound Effect
Symptoms come back stronger after the drug is stopped.
Example: Heartburn worsens after stopping PPIs suddenly.
89. Idiosyncratic Reaction
A rare, unpredictable reaction.
Example: A patient becomes hyper instead of sleepy after taking diphenhydramine.
90. Hypersensitivity
A strong allergic-like reaction.
Example: Swelling or difficulty breathing after a dose.
If you want to test these concepts, you can try our Therapeutic Drug monitoring Quiz after this section.
Don’t worry — nobody remembers the difference between tolerance and dependence the first time. It clicks with practice.
Patient Response Terms at a Glance
| Term | Simple Meaning | Example |
|---|---|---|
| Therapeutic response | Drug works | BP improves |
| Non-therapeutic | Drug doesn’t work | No pain relief |
| Compliance | Takes meds correctly | Daily BP meds |
| Non-adherence | Doesn’t follow plan | Skips insulin |
| Tolerance | Needs more drug | Higher doses needed |
| Dependence | Body relies on drug | Benzodiazepines |
| Withdrawal | Symptoms after stopping | Anxiety/shaking |
| Rebound | Symptoms return stronger | Heartburn |
| Idiosyncratic | Rare reaction | Hyper after Benadryl |
| Hypersensitivity | Strong reaction | Swelling/difficulty breathing |
Advanced Safety & Calculation Terms
These terms appear in dosage calculations, IV infusions, and high-risk medication safety. You’ll see them in exams, clinical skills labs, and real practice.
91. Medication Reconciliation
Checking all medications a patient takes to prevent errors.
Example: Reviewing home meds during admission.
92. Polypharmacy
Taking many medications at the same time.
Example: Older adults often experience polypharmacy.
93. Peak and Trough
Highest and lowest drug levels in the blood.
Example: Measured for vancomycin to keep it safe.
94. Dilution
Mixing a drug with fluid to give it safely.
Example: Diluting potassium before infusion.
95. Infusion Rate
The speed a medication flows into the vein.
Example: 125 mL/hr for IV fluids.
96. Drip Rate
The number of drops per minute in a gravity IV line.
Example: 20 drops per minute.
97. Loading Dose
A larger first dose to reach therapeutic levels quickly.
Example: Loading dose of phenytoin for seizures.
98. Maintenance Dose
Regular dose needed to keep a steady drug level.
Example: Daily maintenance dose of thyroid medication.
99. Therapeutic Range
The safe and effective drug level.
Example: Lithium has a narrow therapeutic range.
100. Concentration-Dependent Dosing
Drug effectiveness depends on reaching a high peak level.
Example: Aminoglycosides work best with high peaks.
Yes — calculations look scary at first. But once you learn the patterns, it becomes way less dramatic.
Calculation & Safety Terms at a Glance
| Term | Simple Meaning | Example |
|---|---|---|
| Med reconciliation | Review all meds | Admission check |
| Polypharmacy | Many meds | Older adults |
| Peak & trough | High/low levels | Vancomycin |
| Dilution | Add fluid | Potassium |
| Infusion rate | mL per hour | IV fluids |
| Drip rate | Drops per minute | Gravity IV |
| Loading dose | First large dose | Phenytoin |
| Maintenance dose | Ongoing dose | Thyroid meds |
| Therapeutic range | Safe drug level | Lithium |
| Concentration-dependent | Needs high peak | Aminoglycosides |
If you want to practice these concepts, try our Dosage Calculation Quiz now.
✨ BONUS: Common Drug Prefixes & Suffixes Every Nursing Student Should Know
Drug endings can save you hours of studying. When you know the patterns, you can guess a drug’s family, purpose, and common side effects — even if you’ve never seen the drug before.
This is one of the easiest ways to make pharmacology feel simple.
And yes — suffixes are the closest thing pharm has to cheat codes.
Below is a simple table you can use to learn the most common ones.
Common Drug Suffixes & What They Mean
| Suffix | Drug Family | Purpose | Example |
|---|---|---|---|
| -pril | ACE inhibitors | Lowers BP | Lisinopril |
| -sartan | ARBs | Lowers BP | Losartan |
| -olol | Beta-blockers | Slows heart | Metoprolol |
| -dipine | Calcium channel blockers | Relaxes arteries | Amlodipine |
| -statin | Cholesterol meds | Lowers lipids | Atorvastatin |
| -prazole | Proton pump inhibitors | Reduces stomach acid | Omeprazole |
| -cillin | Penicillins | Antibiotics | Amoxicillin |
| -mycin | Macrolides/antibiotics | Treat infections | Azithromycin |
| -azole | Antifungals | Kills fungus | Fluconazole |
| -caine | Local anesthetics | Numbs tissue | Lidocaine |
| -mab | Monoclonal antibodies | Immune therapies | Adalimumab |
| -tidine | H2 blockers | Reduce stomach acid | Ranitidine |
| -gliptin | DPP-4 inhibitors | Lowers blood sugar | Sitagliptin |
| -formin | Biguanides | Lowers blood sugar | Metformin |
| -one | Steroids | Reduce inflammation | Prednisone |
How to Use Suffix Patterns When Studying
- They help you recognize drug families fast.
- They reduce memorization load.
- They make NCLEX questions easier.
- They help you anticipate side effects.
Example:
If a drug ends in -pril, you already know it lowers blood pressure and may cause cough.
Knowing the pattern gives you a head start.
If you want to practice these concepts, try our Drug Mnemonics Quiz now.
Quick Reference Table — 100 Common Drug Terms
Below is a simple, clean summary of all terms covered in this guide.
Use it for quick review or last-minute NCLEX prep.
Core Pharmacology Basics
| # | Term | Quick Meaning |
|---|---|---|
| 1 | Drug | Substance that changes body function |
| 2 | Medication | Drug used to treat a condition |
| 3 | Generic name | Official drug name |
| 4 | Brand name | Company drug name |
| 5 | Indication | Why drug is given |
| 6 | Contraindication | When drug should not be given |
| 7 | Side effect | Predictable unwanted effect |
| 8 | Adverse effect | Harmful reaction |
| 9 | Therapeutic effect | Desired effect |
| 10 | Dose/dosage | How much and how often |
Common Pharmacokinetics Terms for Student Nurses
| # | Term | Quick Meaning |
|---|---|---|
| 11 | Absorption | How drug enters blood |
| 12 | Distribution | How drug moves |
| 13 | Metabolism | Body breaks down drug |
| 14 | Excretion | Drug leaves body |
| 15 | Half-life | Time for half to leave |
| 16 | Onset | Time to start working |
| 17 | Peak | Strongest effect |
| 18 | Duration | How long it works |
| 19 | Bioavailability | Amount that reaches blood |
| 20 | First-pass effect | Liver reduces oral drug |
Pharmacodynamics Terms for Student Nurses
| # | Term | Quick Meaning |
|---|---|---|
| 21 | Receptor | Where drug binds |
| 22 | Agonist | Activates receptor |
| 23 | Antagonist | Blocks receptor |
| 24 | Potency | Drug strength |
| 25 | Efficacy | Max effect |
| 26 | Therapeutic index | Safety range |
| 27 | Toxic level | Harmful amount |
| 28 | MEC | Minimum to work |
| 29 | Cmax | Highest blood level |
| 30 | Plasma concentration | Amount in blood |
Safety & Monitoring Terms for Nursing Students
| # | Term | Quick Meaning |
|---|---|---|
| 31 | High-alert medication | Higher risk of harm |
| 32 | Black box warning | Serious FDA warning |
| 33 | Allergy | Immune reaction |
| 34 | ADR | Harmful reaction |
| 35 | Medication error | Any drug mistake |
| 36 | Toxicity | Dangerous level |
| 37 | Serum levels | Blood drug tests |
| 38 | Narrow therapeutic range | Small safe window |
| 39 | Overdose | Too much drug |
| 40 | Antidote | Reversal drug |
Medication Routes & Administration
| # | Term | Quick Meaning |
|---|---|---|
| 41 | PO | Oral |
| 42 | IV | In the vein |
| 43 | IM | In the muscle |
| 44 | SubQ | Fat tissue |
| 45 | SL | Under tongue |
| 46 | Topical | On skin |
| 47 | Transdermal | Patch |
| 48 | Inhalation | Into lungs |
| 49 | PR | Rectal |
| 50 | Drug forms | Tablet, capsule, etc. |
Drug Classes & Mechanisms for Nurses
| # | Term | Quick Meaning |
|---|---|---|
| 51 | ACE inhibitor | Lowers BP |
| 52 | ARB | Lowers BP |
| 53 | Beta-blocker | Slows heart |
| 54 | CCB | Relaxes arteries |
| 55 | Diuretic | Removes fluid |
| 56 | Loop diuretic | Strong diuretic |
| 57 | Thiazide diuretic | Mild diuretic |
| 58 | Anticoagulant | Prevents clots |
| 59 | Antiplatelet | Stops platelets |
| 60 | Thrombolytic | Breaks clots |
| 61 | Statin | Lowers cholesterol |
| 62 | NSAID | Pain + inflammation relief |
| 63 | Opioid | Strong pain relief |
| 64 | Antihistamine | Allergy relief |
| 65 | Antipyretic | Fever reducer |
Medication Orders & Documentation
| # | Term | Quick Meaning |
|---|---|---|
| 66 | MAR | Medication record |
| 67 | PRN | As needed |
| 68 | STAT | Immediately |
| 69 | TID | Three times daily |
| 70 | BID | Twice daily |
| 71 | QID | Four times daily |
| 72 | HS | Bedtime |
| 73 | Q4H | Every 4 hours |
| 74 | Q6H | Every 6 hours |
| 75 | Standing order | Active until changed |
| 76 | Verbal order | Spoken instruction |
| 77 | Discontinue | Stop med |
| 78 | Titrate | Adjust dose |
| 79 | Hold dose | Skip dose |
| 80 | Dispense | Provide med |
Patient Response & Monitoring
| # | Term | Quick Meaning |
|---|---|---|
| 81 | Therapeutic response | Drug works |
| 82 | Non-therapeutic | Drug doesn’t work |
| 83 | Compliance | Takes meds correctly |
| 84 | Non-adherence | Not following plan |
| 85 | Tolerance | Needs more drug |
| 86 | Dependence | Body relies on drug |
| 87 | Withdrawal | Symptoms after stopping |
| 88 | Rebound | Symptoms return stronger |
| 89 | Idiosyncratic | Rare reaction |
| 90 | Hypersensitivity | Strong reaction |
Advanced Safety & Calculations
| # | Term | Quick Meaning |
|---|---|---|
| 91 | Med reconciliation | Review all meds |
| 92 | Polypharmacy | Many meds |
| 93 | Peak & trough | High/low levels |
| 94 | Dilution | Add fluid |
| 95 | Infusion rate | mL/hr |
| 96 | Drip rate | Drops/min |
| 97 | Loading dose | First big dose |
| 98 | Maintenance dose | Ongoing dose |
| 99 | Therapeutic range | Safe level |
| 100 | Concentration-dependent | Needs high peak |
What You’ve Learned
You just learned 100 coomon drug terms that every nursing student should know.
These terms help you read drug orders, understand medication actions, and feel more confident in pharmacology.
Here’s a quick recap of what you can now do:
- Understand the difference between side effects, adverse effects, and toxicity.
- Explain how drugs move through the body using pharmacokinetics.
- Describe how drugs work using pharmacodynamics.
- Recognize common drug classes and what they do.
- Read medication orders with ease.
- Identify safety terms that appear in NCLEX questions.
- Use drug suffixes to guess a drug’s family faster.
- Communicate medication information with confidence during clinicals.
You don’t need to memorize everything today.
Start with a few terms, review them often, and build your understanding step by step.
Your confidence will grow faster than you expect — truly.
And yes… knowing all 100 Common Drug Terms makes you officially “the friend everyone asks drug questions.” It happens.
If you’d like to test your knowledge, you can try our Basic Pharmacology Quiz for Nursing Students to reinforce these terms in a simple, supportive way.
