Pharmacology is one of the most challenging courses in nursing school, and for good reason — patient safety depends on accurate drug knowledge. With hundreds of medications to memorize, it can feel overwhelming. But there is a systematic approach that breaks this mountain into manageable steps and helps you retain the information through the NCLEX and beyond.
The Classification Method
Instead of memorizing individual drugs, start by learning drug classes and their shared characteristics. All beta-blockers end in "-olol" (metoprolol, atenolol, propranolol), they all slow heart rate, and they all require monitoring for bradycardia. Once you know the class, each new drug is just a variation on a theme you already understand.
Key Drug Suffixes to Master
- -olol: Beta-blockers (cardiac, BP lowering)
- -pril: ACE inhibitors (BP lowering, renal protection)
- -sartan: ARBs (BP lowering, ACE alternative)
- -statin: HMG-CoA reductase inhibitors (cholesterol lowering)
- -pam / -lam: Benzodiazepines (anxiety, sedation)
- -cillin: Penicillin antibiotics
The Prototype Drug Approach
For each drug class, learn one prototype drug in depth — its mechanism, dosage range, key side effects, and nursing considerations. Then for other drugs in the class, you only need to remember how they differ from the prototype. This dramatically reduces the total amount of unique information you need to memorize.
Patient safety tip: Always memorize the critical safety criteria for high-alert medications. For example: do not give digoxin if heart rate is below 60 bpm. These checks must be automatic.
Creating Effective Drug Flashcards
Each flashcard should include: drug name and class, mechanism of action in one sentence, 2 to 3 key side effects, and 1 to 2 critical nursing considerations. Keep cards concise and focused on the most testable information.
Spaced Repetition for Pharmacology
Start building your drug flashcard deck from the first day of pharmacology class. Add new drugs as you learn them and review daily using the Memorize app's spaced repetition system. By exam time, you will have reviewed each drug dozens of times at optimal intervals, making recall automatic even under NCLEX pressure.

