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Pharmacology looks like a memorization course: hundreds of drug names, each with uses, side effects and interactions. Students who try to learn it one drug at a time usually drown. The ones who do well learn it the way the subject is built, as a few dozen drug classes, each with a mechanism that explains most of what you need to know.
This guide is about how to take notes and study for a pharmacology course. It isn't medical advice, and nothing in your study notes should be used to make decisions about real medications or doses. Your course materials, instructors and official drug references are the authority on content.
Start with the foundations
Most pharmacology courses open with two big ideas before any specific drugs. Give them real attention, because everything later leans on them.
Pharmacokinetics is what the body does to a drug: absorption, distribution, metabolism and excretion, often abbreviated ADME. Draw it as a pathway from the route of administration to elimination, and note at each step what can change it (liver function at metabolism, kidney function at excretion). Terms like half-life and first-pass effect belong on this page.
Pharmacodynamics is what the drug does to the body: receptors, agonists, antagonists, potency and efficacy. These concepts make far more sense as pictures than as definitions, which is the next section.
If your course covers the autonomic nervous system early, treat it as a foundation too. A clean chart of sympathetic and parasympathetic effects on each organ, with the receptor types involved, lets you predict what an agonist or antagonist at that receptor will do. Many drug classes are just that chart applied.
Sketch the dose-response curves
Dose-response curves are a classic pharmacology topic and a common source of exam questions. They're usually drawn with drug concentration on a log scale, which turns the curve into an S shape. Practice drawing them and reading them:
- Potency is about position: a curve further to the left means less drug is needed for the same effect.
- Efficacy is about height: the curve's maximum is the largest effect the drug can produce.
- A competitive antagonist shifts the agonist's curve to the right without lowering its top.
- A noncompetitive antagonist lowers the top of the curve.
Draw a baseline curve, then copies with each change, side by side, and label what moved. Exam questions often show two curves and ask which drug is more potent, so practice until you answer by looking.
Scribba has Semi-Log paper, with a log scale on one axis, which suits these curves. Use a different color for each drug so comparisons are easy to read. More on these papers in log graph paper on iPad.
Build a profile for every drug class
Once you're into specific drugs, give every class the same profile and fill it in the same order each time. A typical set of fields:
- Class name and the prototype drug your course uses as its example.
- Mechanism, in one or two lines, with a small sketch if it helps.
- Main uses, as your course teaches them.
- Major adverse effects, ideally linked back to the mechanism.
- Key interactions and cautions your course emphasizes.
- Name stem, if the class has one.
Learn the prototype deeply, then note how other drugs in the class differ from it. That's far less to remember than separate profiles for every drug.
The mechanism line does the most work. If you know a class blocks a particular receptor, you can often reason out its adverse effects from the autonomic chart instead of memorizing them. When you can't explain an adverse effect from the mechanism, mark it with a star: that's one to memorize outright.
Profiles in Scribba
Scribba's Index Cards paper is a page of card outlines, which suits one class per card. If you'd rather compare classes, draw a chart on Grid paper with classes down the side and fields across the top, in the spirit of the charting method. Bookmark each body system or unit so the profiles are easy to find; named bookmarks in the page sidebar become a table of contents.
Keep a name stems page
Many generic drug names share endings that hint at their class. A few well-known examples: -olol for beta blockers, -pril for ACE inhibitors, -sartan for angiotensin receptor blockers, -statin for HMG-CoA reductase inhibitors, -dipine for one group of calcium channel blockers, and -cillin for penicillins.
Keep a running page of the stems your course uses, each with the class and the prototype. Treat stems as clues, not rules, since there are exceptions. On exams, a stem can help you place an unfamiliar drug name in a class, and the class tells you the rest.
Flashcards: small, specific and both directions
Pharmacology is one of the courses where flashcards and spaced repetition earn their keep. A few rules for good cards:
- One fact per card. "Mechanism of ACE inhibitors?" is a good card. "Everything about ACE inhibitors" isn't.
- Go both directions. Drug to class, and class to prototype. Mechanism to adverse effect, and adverse effect back to the class that causes it.
- Mix classes when you review. Exams don't group questions by class, so your practice shouldn't either.
Scribba can make cards from your handwriting: a Vocabulary page turns each row into a flashcard, and a Cornell Notes page turns each cue into one. Neither needs Apple Intelligence. Review the cards before you study, because long drug names are easy for handwriting recognition to misread, and spelling counts. For names you want exactly right, you can also make a deck by hand: create a new deck, tap Add Card, and type the front and back.
Decks use spaced repetition, with cards coming back after 1, 3, 7, 14 and 30 days, and you can study every due card at once. If you also use Quizlet or Anki, you can export a deck there. See spaced repetition flashcards.
Tip: drag study tape over the mechanism line on each class profile. Look at the class name, explain the mechanism out loud, then tap to check.
Hear the names again
Drug names are hard to catch the first time, and easy to misspell. If your instructor allows recording, tap the mic in Scribba and take notes as usual. Every stroke is linked to that moment, so you can tap a half-written name and hear it again. Recordings are transcribed, so you can search for a name you didn't catch. On an iPad that supports Apple Intelligence, with it turned on, Scribba can also list a lecture's key points; check them against your slides and textbook, like any summary. Ask before you record and check your school's policy.
Frequently asked questions
What's the best way to memorize drug names?
Learn them through classes. Know the prototype well, learn the name stem, and make cards that link each drug to its class. A daily flashcard review keeps older classes from fading.
Should I learn brand names or generic names?
Follow your course. Many pharmacology courses teach mainly generic names, because they carry the stems that hint at a drug's class.
Can I use my class notes as a drug reference later?
Treat them as study notes, not a reference. For anything involving real patients or medications, use the references your program or workplace requires.