Top Drugs for the PTCB® Exam: The 50 to Know First
PTCB® publishes no drug list for the PTCE®, so every "top 200" you find, this one included, is somebody's judgment. Ours is the 50 most-prescribed drugs in the United States, taken from 2024 federal survey data, grouped by class, with each brand name checked against FDA's own records.
Fifty, not two hundred, on purpose. Medications is the largest domain on the exam at 28 of the 80 scored items, and these 50 are the names you will meet most often on a profile. Learn them cold first. Then widen.
Where this list comes from
The ranking basis is the ClinCalc DrugStats Database ("The Top 300 of 2024"), which is built from the Medical Expenditure Panel Survey run by the federal Agency for Healthcare Research and Quality. We took the top 50 by prescription volume and regrouped them by what they do, because the exam asks about classes and uses, not about rank order. We do not reproduce ClinCalc's ranks or counts here.
Then we checked every brand/generic pair against Drugs@FDA, FDA's database of approved products. That check turned up something most lists skip: 18 of the 50 brand names are listed by FDA as discontinued under that exact name (marked † below). Lasix, Prozac, Zofran and Flexeril are all on it. The generic is everywhere; the original brand product is not. Some live on over the counter under a longer name, such as Pepcid AC and Zyrtec Allergy.
Learn the pairing anyway. Brand names stick to drugs long after the product leaves the shelf, and a question that says Lasix still means furosemide.
What the 2026 outline asks for here, in its own words: "Generic names, brand names, and classifications of medications" (1.1), "Therapeutic duplications" (1.2), interactions and contraindications (1.3), side effects (1.5) and "Indications of medications" (1.6). The look-alike/sound-alike pairs sit in the Patient Safety domain under 3.1 and 3.2. For the weights behind all of that, see how the 2026 outline changed.
The top 50 drugs for the PTCB exam, by class
† = Drugs@FDA lists the product under this exact brand name as discontinued (checked October 31, 2026).
Heart and blood pressure
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Lisinopril | Zestril | ACE inhibitor | hypertension; heart failure |
| Losartan | Cozaar | angiotensin II receptor blocker (ARB) | hypertension |
| Amlodipine | Norvasc | calcium channel blocker | hypertension; angina |
| Metoprolol | Toprol-XL | beta blocker | hypertension; angina; heart failure |
| Carvedilol | Coreg | beta blocker (alpha/beta) | heart failure; hypertension |
| Hydrochlorothiazide | Microzide | thiazide diuretic | hypertension |
| Furosemide | Lasix † | loop diuretic | edema; hypertension |
| Spironolactone | Aldactone | potassium-sparing diuretic (aldosterone antagonist) | heart failure; edema; hypertension |
| Potassium chloride | Klor-Con | potassium supplement | hypokalemia |
Cholesterol
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Atorvastatin | Lipitor | statin (HMG-CoA reductase inhibitor) | high cholesterol |
| Rosuvastatin | Crestor | statin (HMG-CoA reductase inhibitor) | high cholesterol |
| Simvastatin | Zocor | statin (HMG-CoA reductase inhibitor) | high cholesterol |
Blood clots
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Apixaban | Eliquis | factor Xa inhibitor (anticoagulant) | stroke prevention in atrial fibrillation; DVT/PE |
| Clopidogrel | Plavix | P2Y12 platelet inhibitor | prevention of heart attack and stroke |
Diabetes and weight
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Metformin | Glucophage † | biguanide | type 2 diabetes |
| Semaglutide | Ozempic | GLP-1 receptor agonist | type 2 diabetes |
| Tirzepatide | Mounjaro | GIP/GLP-1 receptor agonist | type 2 diabetes |
| Empagliflozin | Jardiance | SGLT2 inhibitor | type 2 diabetes; heart failure |
| Insulin glargine | Lantus | long-acting insulin | diabetes |
Thyroid and hormones
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Levothyroxine | Synthroid | thyroid hormone | hypothyroidism |
| Prednisone | Deltasone † | corticosteroid | inflammation; allergic and autoimmune conditions |
Stomach
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Omeprazole | Prilosec | proton pump inhibitor | GERD; ulcers |
| Pantoprazole | Protonix † | proton pump inhibitor | GERD; erosive esophagitis |
| Famotidine | Pepcid † | H2 receptor antagonist | GERD; ulcers |
| Ondansetron | Zofran † | 5-HT3 receptor antagonist (antiemetic) | nausea and vomiting |
Mood, anxiety and sleep
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Sertraline | Zoloft | SSRI antidepressant | depression; anxiety disorders |
| Escitalopram | Lexapro | SSRI antidepressant | depression; generalized anxiety disorder |
| Fluoxetine | Prozac † | SSRI antidepressant | depression; OCD; bulimia; panic disorder |
| Bupropion | Wellbutrin XL | antidepressant (aminoketone) | depression; seasonal affective disorder |
| Duloxetine | Cymbalta | SNRI antidepressant | depression; anxiety; neuropathic pain |
| Venlafaxine | Effexor XR | SNRI antidepressant | depression; anxiety disorders |
| Trazodone | Desyrel † | antidepressant (serotonin modulator) | depression |
| Buspirone | BuSpar † | anxiolytic | anxiety |
| Hydroxyzine | Vistaril † | antihistamine | anxiety; itching (pruritus) |
ADHD (Schedule II stimulants)
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Amphetamine mixed salts | Adderall XR | CNS stimulant (C-II) | ADHD; narcolepsy |
| Methylphenidate | Ritalin | CNS stimulant (C-II) | ADHD |
Pain, nerves and muscles
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Gabapentin | Neurontin | anticonvulsant | partial seizures; postherpetic neuralgia |
| Meloxicam | Mobic † | NSAID | osteoarthritis; rheumatoid arthritis |
| Ibuprofen | Motrin † | NSAID | pain; arthritis; menstrual cramps |
| Hydrocodone / acetaminophen | Norco † | opioid analgesic combination (C-II) | pain |
| Tramadol | Ultram † | opioid analgesic (C-IV) | pain |
| Cyclobenzaprine | Flexeril † | skeletal muscle relaxant | muscle spasm |
| Allopurinol | Zyloprim | xanthine oxidase inhibitor | gout |
Breathing and allergy
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Albuterol | Ventolin HFA | short-acting beta-2 agonist | bronchospasm (asthma, COPD) |
| Montelukast | Singulair | leukotriene receptor antagonist | asthma; allergic rhinitis |
| Fluticasone | Flonase † | corticosteroid (nasal spray) | allergic and nonallergic rhinitis |
| Cetirizine | Zyrtec † | antihistamine (H1) | allergies |
Infection
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Amoxicillin | Amoxil | penicillin antibiotic | bacterial infections |
Other
| Generic | Brand | Class | Main use |
|---|---|---|---|
| Tamsulosin | Flomax † | alpha-1 blocker | benign prostatic hyperplasia |
| Ergocalciferol | Drisdol | vitamin D analog | hypoparathyroidism; refractory rickets |
Read the suffix before you read the name
Generics are named by stem, and the stems in this list map cleanly to classes. Spot the ending and you have the class before you have finished the word.
| Ending | In this list | Class |
|---|---|---|
| -pril | lisinopril | ACE inhibitor |
| -sartan | losartan | ARB |
| -olol / -ilol | metoprolol, carvedilol | beta blocker |
| -statin | atorvastatin, rosuvastatin, simvastatin | HMG-CoA reductase inhibitor |
| -prazole | omeprazole, pantoprazole | proton pump inhibitor |
| -tidine | famotidine | H2 receptor antagonist |
| -glutide | semaglutide | GLP-1 receptor agonist |
| -gliflozin | empagliflozin | SGLT2 inhibitor |
| -xaban | apixaban | factor Xa inhibitor |
That table is the cheapest ten minutes you will spend on this domain.
Five pairs this list sets up for you
Tall Man pairs. FDA keeps a list of established drug names that should be printed with Tall Man lettering because they get confused. Two of its pairs have both halves in our top 50:
- buPROPion / busPIRone — an antidepressant and an anxiolytic.
- traZODone / traMADol — an antidepressant and a Schedule IV opioid.
Two more pairs on FDA's list have one half here: predniSONE / prednisoLONE, and hydrOXYzine / hydrALAZINE. The capitals mark where the names differ. That is the whole point of the convention, and it is exactly what a 3.2 question tests.
Therapeutic duplication. Lisinopril and losartan both act on the renin-angiotensin system. Seeing both on one profile is the textbook duplication a technician flags for the pharmacist. The same goes for two drugs from any one row of the suffix table.
Controlled substances in the top 50
Four drugs here are federally controlled. Know the schedule, because it drives refill and transfer rules in the Federal Requirements domain:
- Schedule II: amphetamine salts (Adderall XR), methylphenidate (Ritalin), hydrocodone with acetaminophen (Norco). Schedule II prescriptions cannot be refilled.
- Schedule IV: tramadol (Ultram).
Source: 21 CFR 1308.12 and 1308.14. The refill and transfer rules themselves are in the Federal Requirements guide.
The NTI drugs are still on the exam
The 2026 outline removed Narrow Therapeutic Index as a named knowledge area. It did not remove the drugs. Levothyroxine is in our top 50. Warfarin, digoxin and phenytoin are not, but all four stay testable under interactions and contraindications (1.3) and high-alert medications (3.1). Do not skip them because a heading disappeared.
Five practice items from this list
1. What is the brand name of atorvastatin? A. Zocor B. Lipitor C. Crestor D. Zestril Answer: B. Zocor is simvastatin and Crestor is rosuvastatin, both in the same class; Zestril is lisinopril.
2. Which drug is an angiotensin II receptor blocker? A. Lisinopril B. Metoprolol C. Losartan D. Amlodipine Answer: C. The -sartan stem. Lisinopril is an ACE inhibitor, metoprolol a beta blocker, amlodipine a calcium channel blocker.
3. FDA's Tall Man list pairs trazodone with which drug? A. Tramadol B. Trandolapril C. Tamsulosin D. Topiramate Answer: A. Written traZODone / traMADol.
4. A profile shows lisinopril 10 mg daily and a new prescription for losartan 50 mg daily. What should the technician do? A. Fill both; they treat the same condition B. Substitute one for the other C. Refer it to the pharmacist as a possible therapeutic duplication D. Fill losartan and discontinue lisinopril Answer: C. Both act on the renin-angiotensin system. Spotting it is the technician's job; deciding is the pharmacist's.
5. Which of these is Schedule IV under federal law? A. Hydrocodone / acetaminophen B. Methylphenidate C. Tramadol D. Amphetamine salts Answer: C. The other three are Schedule II.
How to use this list
Drill the 50 by class, not alphabetically, so the suffix pattern does the work. Then test it under the clock: on the real exam a brand/generic item can sit between a DEA question and a days-supply calculation, with no drug block to warm up in. For a week-by-week plan built on the 2026 item counts, use the 2026 study guide. To see how Medications items feel mixed in with everything else, take the free full-length practice test: 90 questions, 110 minutes, free account, no card.