OPRA Exam Syllabus: The Five Domains, Weightings and Topics

The five content areas at a glance

These weightings are published by the Australian Pharmacy Council in the OPRA Exam Guide (Table 1, “OPRA content areas”), and they should drive how you allocate study time. Spreading effort evenly across five areas means over-studying the 10% ones and under-studying the 45% one. ClinicalStem’s mock exams sample to exactly these proportions, so a practice paper mirrors the real distribution rather than a flat split.

• Therapeutics and patient care — 45%. Clinical application of the other four areas, plus calculations, special populations, harm minimisation and health promotion.
• Biomedical sciences — 20%. Physiology, pathophysiology, microbiology, immunology, fluid/electrolyte and acid–base and blood disorders, and diagnostic and laboratory investigations.
• Pharmacology and toxicology — 15%. Mechanisms, receptor theory, adverse effects, interactions, toxicity and antidotes.
• Pharmacokinetics and pharmacodynamics — 10%. Drug metabolism, ADME, half-life and clearance, dose individualisation and therapeutic drug monitoring.
• Medicinal chemistry and biopharmaceutics — 10%. Physicochemical properties, formulation, stability, solubility and pharmaceutical microbiology.

A note on what the percentages mean

The APC describes these as approximate allocations, not a guaranteed question count — so 45% does not reliably mean exactly 54 questions on your particular paper.

There is a second reason the arithmetic does not land cleanly. Of the 120 questions, about 90% are scored and 10% are unscored: the unscored items are included for calibration, are spread evenly across all five content areas, do not count towards your result, and are not counted towards the target percentage for any area. You are not told which is which, so the only sane approach is to treat every question as if it counts.

How the five areas fit together

The five areas are not five separate subjects, and studying them as though they were is the most common structural mistake in OPRA preparation. The APC defines Therapeutics and patient care as the “clinical application of content areas 1–4 in patient care” — meaning the largest area of the exam is, by definition, built on the other four.

Take a patient with heart failure and renal impairment. Biomedical sciences gives you the pathophysiology and the interpretation of their renal function; Pharmacology gives you the mechanism of an ACE inhibitor and why it affects that renal function; Pharmacokinetics tells you how to individualise the dose; Medicinal chemistry underlies the formulation you actually supply; and Therapeutics is where you make and monitor the decision. One question can require all five.

The practical consequence: time spent on the 10% areas is rarely wasted, because it also underwrites the 45% one. Study a drug class properly and you earn marks in several areas at once.

What the OPRA exam does NOT test

This is worth as much as knowing what is on the syllabus, because it is where overseas-trained candidates most often waste preparation time.

The APC states plainly that the OPRA exam does not examine pharmacy practice issues specific to the Australian or New Zealand context, such as legislation or practice standards. Those are assessed later, in the assessments that sit inside the internship period on the way to general registration.

In practice that puts Australian-specific material such as the PBS, medicine scheduling under the SUSMP, and mandatory reporting obligations outside the OPRA syllabus. You will need them — but for your internship, not for this exam. If you want to read ahead anyway, the PBS, medicine scheduling (SUSMP) and professional standards and mandatory reporting are there, clearly marked as post-OPRA practice material rather than exam preparation.

Two things people wrongly file under this heading and then skip: quality use of medicines, and the general principles of confidentiality and professionalism in handling medicines information and patient records. Both are named in the APC’s own description of Therapeutics and patient care, so both are examinable. What is excluded is the Australian-specific legislative and standards layer, not the professional principles underneath it.

How OPRA questions are pitched

The APC publishes the cognitive mix as well as the content split: roughly 55% of questions test remembering and recall, 30% comprehension and understanding, and 15% application.

That is worth absorbing, because it cuts against the instinct that a modern clinical exam must be mostly scenarios. More than half the paper rewards knowing things outright — interactions, parameters, mechanisms, terminology — and no amount of clinical reasoning substitutes for not knowing them. Practise applying knowledge, certainly, but do not neglect the recall base it stands on.

1. Therapeutics and patient care (45%)

The largest area by a wide margin, and the one where the other four are brought to bear on an actual patient. The APC lists eight components: screening calculations (BMI, creatinine clearance); dose calculations; primary health care and when non-pharmacological treatment is more appropriate; safe and effective use of medicines in populations needing extended consideration (the elderly, children under 12, pregnancy, breastfeeding); monitoring, review and adherence; harm minimisation; health promotion and disease prevention; and the general principles of confidentiality and professionalism.

Note where the calculations live: the bulk of the exam’s calculation content — dose calculations, body-weight and body-surface-area dosing, ratio and proportion, percentage, stock solutions, dilution, alligation, milliequivalents and milliosmoles, reconstitution, infusion rates, isotonicity — is listed here under Therapeutics, not under PK/PD. Candidates who file “calculations” under the 10% area routinely under-practise them.

Visit the Therapeutics & patient care hub for domain-specific practice and a high-yield condition list.

Deep guides: Hypertension · Heart failure · Type 2 diabetes · Asthma and COPD · Warfarin and anticoagulation · DOACs vs warfarin · Antimicrobial selection · Antidepressants · Thyroid disorders · Dyslipidaemia and statins · Immunisation · Quality use of medicines

2. Biomedical sciences (20%)

The second-largest area, and easy to underestimate because it feels further from day-to-day dispensing than therapeutics does. The APC lists six components: physiological processes across all body systems; pathophysiology; medical microbiology; immunology, including vaccines and vaccine-preventable disease; disorders affecting bodily fluids — fluid and electrolyte disorders, metabolic acid–base disorders and blood disorders; and the signs, symptoms, diagnostic tests and laboratory investigations associated with them.

That fifth component is the one most often missed. Fluid, electrolyte, acid–base and blood disorders are named explicitly in the syllabus and sit awkwardly between subjects, so they fall through the gap in a lot of study plans.

Our depth here currently sits in the Crash Course rather than in long-form guides — 12 modules and 439 practice questions — with standalone articles still to be written for most of it.

Visit the Biomedical sciences hub for the high-yield topic list.

3. Pharmacology and toxicology (15%)

Mechanism-level understanding: the impact of drugs on organs and body systems, dose–response relationships, agonists and antagonists, enzyme induction and inhibition, genetic polymorphism, receptor theory, mechanisms of action by drug category, adverse drug reactions, drug interactions, toxicity and antidotes, and the pharmacologic, physiological and pathophysiological factors that modify all of it.

Much of this underwrites Therapeutics, so studying a drug class well earns marks in both areas.

Visit the Pharmacology & toxicology hub for the high-yield topic list.

Deep guides: ACE inhibitors · Opioid analgesics · Corticosteroids · High-yield drug interactions · Drug toxicity and antidotes

4. Pharmacokinetics and pharmacodynamics (10%)

Smaller by weighting but worth more preparation than 10% suggests, because it underpins dosing decisions throughout Therapeutics. The APC lists drug metabolism and the biochemical basis of drug action; principles of pharmacokinetics — bioavailability and bioequivalence, half-life, clearance, distribution, protein binding, steady state; the factors that affect drug onset and duration; evaluation of pharmacokinetic data, including concentration–time curves and low-therapeutic-index drugs; and using pharmacokinetic data to individualise therapy, including dose adjustment in renal and hepatic dysfunction, loading doses and time to steady state.

It is quantitative, but note the distinction from the general dose calculations listed under Therapeutics: the numbers here are about clearance, half-life, steady state and individualisation specifically.

Visit the Pharmacokinetics & pharmacodynamics hub for the high-yield topic list.

Deep guides: Pharmacokinetics basics · Creatinine clearance · Renal drug dosing · IV infusion rates · Paediatric dosing · BSA chemotherapy dosing · mmol and mEq electrolytes

Drill the numbers in the free Calculations Lab — values randomise on every attempt, so you practise the method rather than memorising an answer. It covers the Therapeutics calculations as well as the PK ones.

5. Medicinal chemistry and biopharmaceutics (10%)

The smallest area, covering the physicochemical properties of drugs as they bear on ADME; formulations for drug delivery, including solids and solid dosage forms, solutions, suspensions and emulsions; drug and chemical stability — hydrolysis and oxidation, zero- and first-order degradation, the effects of temperature and pH; solubility, dissolution and partition; the materials and methods used to formulate delivery systems across the common routes of administration; and pharmaceutical microbiology, meaning preservation, antimicrobial agents and sterilisation.

As with Biomedical sciences, our depth here is in the Crash Course — 7 modules and 281 practice questions — rather than standalone guides. The exception is the calculation-adjacent material: percentage and ratio strengths is directly relevant and worth working through.

Visit the Medicinal chemistry & biopharmaceutics hub for the high-yield topic list.

How to allocate your study time

As a starting point, allocate broadly in proportion to the weightings rather than evenly — that alone puts most candidates in a better position than a flat five-way split.

But weighting is only half the input. Your final allocation should also reflect your own diagnostic performance: a candidate already strong in therapeutics may gain far more from a fortnight on biomedical sciences or calculations than from more of what they are already good at. The weighting tells you where the marks are; your results tell you where yours are missing.

So check yourself against the syllabus rather than against your sense of progress. A full timed mock exam samples all five areas in the published proportions and reports a per-domain breakdown, which shows where the remaining gap actually is. The study method guide covers how to sequence the work from there.

How ClinicalStem maps to the syllabus

• Therapeutics and patient care (45%) — written study guides, the largest share of the question bank, and the Calculations Lab for the dose calculations listed under this area
• Biomedical sciences (20%) — Crash Course modules and question-bank coverage; long-form guides still being written
• Pharmacology and toxicology (15%) — drug-class guides plus question-bank coverage
• Pharmacokinetics and pharmacodynamics (10%) — written guides, the Calculations Lab, and question-bank coverage
• Medicinal chemistry and biopharmaceutics (10%) — Crash Course modules and question-bank coverage
• Not on the OPRA syllabus — PBS, SUSMP scheduling and mandatory reporting are published as internship-stage practice reading, not exam preparation