PTCB Medications
Domain 1 of the PTCE · 35% of the 2026 exam · updated
Medications is Domain 1 of the PTCE and the largest slice of the exam: 35% of the 2026 content outline. This guide explains exactly what the domain covers and points you to the free, source-cited practice quizzes for each part of it.
If you are deciding where to spend study time, this is it. Because Medications is more than a third of the exam, strong brand and generic recall, class identification, and a working grasp of interactions and storage move your score more than any other single area.
Share of the 90-question exam by knowledge domain, per the official content outline effective January 6, 2026.
- Medications 35% (about 31 questions)
- Patient Safety & Quality Assurance 23.75% (about 21 questions)
- Order Entry & Processing 22.5% (about 20 questions)
- Federal Requirements 18.75% (about 17 questions)
What gets tested in this domain
Per the official PTCE content outline effective January 6, 2026, this domain covers:
- Generic names, brand names, and drug classifications
- Therapeutic equivalence and therapeutic duplications
- Drug interactions (drug-drug, drug-supplement, drug-disease, drug-laboratory) and contraindications
- Dosage forms, routes of administration, and how they affect use
- Common and clinically important side effects
- Indications for the most-dispensed medications
- Drug stability and proper storage, including refrigeration and light protection
Practice each part of this domain
| Subtopic | Practice it |
|---|---|
| Brand and generic names | Brand & Generic Quiz |
| Drug classifications | Drug Class Quiz |
| Full Medications domain | Medications Practice Test |
| Storage and stability | Storage & Stability Quiz |
| Most-dispensed drugs | Top 200 Drugs Quiz |
Sample questions from this domain
These are real, source-cited questions from our bank. For a scored, timed run, take the Medications Practice Test.
1. To which drug class does metformin belong?
- A. Biguanides ✓
- B. Sulfonylureas
- C. Thiazolidinediones
- D. DPP-4 inhibitors
Answer: A. Metformin is the only biguanide in common use and is the usual first-line oral agent for type 2 diabetes. Sulfonylureas such as glipizide work by stimulating insulin release, a different mechanism, so they are a separate class.
2. Toprol-XL (metoprolol succinate) belongs to which drug class?
- A. Calcium channel blockers
- B. Beta blockers ✓
- C. ACE inhibitors
- D. Alpha-1 blockers
Answer: B. Metoprolol is a beta blocker, specifically a beta-1 selective (cardioselective) agent, used for hypertension, angina, heart failure, and after a heart attack. Generic names ending in -olol are a useful clue for beta blockers, distinguishing them from calcium channel blockers such as amlodipine.
3. Omeprazole and pantoprazole are both classified as which type of medication?
- A. Histamine-2 (H2) receptor antagonists
- B. Proton pump inhibitors ✓
- C. Antacids
- D. Prokinetic agents
Answer: B. Omeprazole and pantoprazole are proton pump inhibitors (PPIs), which block the stomach's acid-producing pump to reduce acid secretion. H2 receptor antagonists such as famotidine also lower acid but through a different receptor, and antacids simply neutralize acid already present.
Keep studying Medications
Frequently asked questions
How much of the PTCB exam is about medications?
Under the content outline effective January 6, 2026, the Medications domain is 35% of the exam, roughly 32 of the 90 questions. It was 40% under the previous outline, so older guides overstate it slightly.
What is the fastest way to study the Medications domain?
Start with brand and generic recall for the most-dispensed drugs, then learn to identify drug classes by suffix. Those two skills unlock most Medications-domain questions because class points you to mechanism, indication, and side effects.
Official sources
PTCB Quiz Prep is an independent study resource, not affiliated with the Pharmacy Technician Certification Board. Verify current exam facts with PTCB. See our editorial standards.