Written by a pharmacist Β· Free guide
How to pass the GPhC exam
The GPhC registration assessment is the last hurdle between you and the register, and it is very passable with the right plan. This guide walks you through exactly what the exam is, how to build a realistic revision timetable, how to master the calculations that catch people out, and how to handle the clinical paper and the exam day itself. It is written by a pharmacist who has been through it.
On this page
- 1. Understand the exam
- 2. Build a realistic study plan
- 3. Master the calculations (Part 1)
- 4. Win the clinical paper (Part 2)
- 5. Learn to use the BNF and MEP fast
- 6. Question technique that saves marks
- 7. Exam-day strategy
- 8. Why people fail, and how not to
Understand exactly what you are facing
You cannot prepare well for an exam you do not understand. The GPhC registration assessment is a computer-based exam sat in two papers, usually on the same day:
- β’Part 1 β Calculations. Forty pharmacy calculation questions where you type in a numeric answer. There are no answer options to fall back on, so accuracy is everything.
- β’Part 2 β Clinical. Around 120 questions in two formats: single best answer (choose one of several options) and extended matching questions (pick the best option from a longer list that serves several questions).
You have to pass both parts, and the pass standard is set for each sitting rather than being a fixed number, though it has typically sat around 70 percent. Every question maps to the GPhC framework, so nothing is examined that is not somewhere in that document. Reading the framework early tells you what is fair game and stops you wasting time on things that are not.
π‘ Do this first
Download the current GPhC candidate guidance and framework and read them once, properly. Knowing the timing, the question formats and the rules on the day removes a huge amount of exam-room stress, because none of it is a surprise.
Build a realistic study plan
Most trainees revise across 3 to 4 months alongside their foundation year, then step it up in the final 6 to 8 weeks. Total hours matter less than consistency: an hour of questions most days beats an eight-hour cram once a week, because spacing your practice is what makes it stick.
A plan that works for a lot of people looks like this:
- β’Months 1 to 2 β build foundations. Work topic by topic through clinical areas and calculation types. Get comfortable finding things in the BNF and MEP. Do questions in each area as you cover it, not at the end.
- β’Month 3 β build stamina. Do mixed question sets rather than single topics, so you practise switching between areas the way the real paper forces you to. Start doing calculations daily.
- β’Final 6 to 8 weeks β simulate the exam. Sit full, timed mock papers under exam conditions. Review every mock in detail. Fix the weak areas the mocks expose.
π‘ Track your weak spots
Keep a running list of every topic you get wrong and revisit it. The questions you get right teach you little; the ones you get wrong are your whole revision plan writing itself.
Master the calculations (Part 1)
Calculations are, for most people, the part that decides the result, and they are also the most learnable part of the whole exam. A calculation question has one correct method and one correct answer, so once the method is automatic, you can secure those marks reliably in a way you never quite can with judgement-based clinical questions.
The exam-critical calculation types are well defined. Make sure you can do all of these without hesitation:
- β’Unit conversions and dose-per-weight calculations
- β’Concentrations, dilutions and percentage strengths
- β’Infusion rates (mL per hour, drops per minute, dose per kg per minute)
- β’Moles, millimoles and parts-per calculations
- β’Displacement values, and calculations for children by weight and body surface area
Drill them until they feel boring. The aim is not to be able to do a calculation slowly with effort, but to do it quickly, correctly and under pressure, which only comes from repetition.
π Free calculations guide
Our GPhC calculations guide covers every one of these types in its own page, with fully explained worked examples and practice questions. It is free for everyone.
π‘ Sanity-check every answer
Before you move on, ask whether your answer is a sensible size. If you have calculated a 10-year-old needs 4,000 mg of a drug, something has gone wrong. A quick order-of-magnitude check catches most careless slips before they cost you a mark.
Win the clinical paper (Part 2)
Part 2 tests whether you can apply knowledge safely, not whether you can recite facts. The questions are built around realistic scenarios: a patient, a prescription, a set of results, and you have to decide the safest and most appropriate action. Pure memorisation is not enough, because the exam is testing your judgement.
The highest-yield clinical areas to be strong in are:
- β’High-risk medicines β warfarin, DOACs, insulin, methotrexate, lithium, opioids and the monitoring they need.
- β’Interactions, cautions and contraindications β the ones that change what you would safely supply.
- β’Responding to symptoms β over-the-counter treatment and, crucially, the red flags that mean refer.
- β’Law and ethics (MEP) β legal classes, controlled drugs, emergency supply and professional standards.
High-risk medicines guide
The drugs most likely to cause serious harm, and their monitoring.
MEP: law & ethics guide
Medicines law, controlled drugs and professional practice.
Responding to symptoms
OTC treatment of minor ailments and the red flags for referral.
Antibiotics guide
Classes, first-line choices, allergy and key interactions.
Learn to use the BNF and MEP fast
You are not expected to hold the entire BNF in your head. You are expected to know your way around it well enough to find the right answer quickly under time pressure. In the exam, being able to locate a fact fast is worth more than half-remembering it.
Practise with the same references you will have on the day. Learn where the interactions appendix lives, how the treatment summaries are laid out, where renal and hepatic advice sits, and how the MEP is structured. Every second you save looking something up is a second you can spend thinking.
π‘ Practise with the book open the right way
Do not just look up the answer and move on. Notice where you found it and how the section is organised, so that next time your hand goes straight there. Speed with the references is a skill you build, not something you are born with.
Question technique that saves marks
A surprising number of marks are lost not to gaps in knowledge but to how questions are read and answered. Tighten your technique and you recover marks you already deserve:
- β’Read the actual question. Note whether it asks for the most appropriate, the least appropriate, the first action or the single best option. The wrong verb changes the whole answer.
- β’Eliminate first. In single best answer questions, ruling out clearly wrong options often leaves a straight choice between two, which is far easier to call.
- β’For EMQs, read the option list once, then the questions. Match the best fit for each stem; the best answer for one stem is not always the most obvious one.
- β’Never leave a blank. There is no negative marking, so an educated guess can only help. Flag it, move on, and come back if you have time.
Exam-day strategy
By the day itself the knowledge is either there or it is not, so your job is to convert what you know into marks without tripping over timing or nerves.
- β’Watch the clock. Know roughly how long you can spend per question and keep to it. Do not sink ten minutes into one calculation while ten easier marks wait at the end.
- β’Do the easy marks first. Answer everything you find straightforward on a first pass, flag the rest, and come back. Banking secure marks early settles the nerves.
- β’In calculations, write out your working. A clear method makes slips easier to catch, and lets you re-check quickly at the end.
- β’Look after the basics. Sleep the night before, know your route to the test centre, and arrive early. Being calm and rested is worth real marks.
Why people fail, and how not to
The reasons people do not pass are remarkably consistent, which is good news, because it means they are avoidable:
- βUnder-practising calculations. Treat Part 1 as a daily habit, not a topic you visit once.
- βRevising passively. Re-reading notes feels productive but changes little. Doing questions and reviewing your mistakes is what moves the needle.
- βNever practising under time pressure. If your first timed paper is the real one, timing alone can sink you. Sit full mocks first.
- βIgnoring weak areas. It is tempting to keep doing topics you are good at. Deliberately spend your time where you are weakest.
Frequently asked questions
How hard is the GPhC registration assessment?
It is a demanding exam, but it is very passable with structured preparation. Most people who fail do so because they under-prepared for calculations, ran out of time, or revised passively by re-reading rather than by doing questions. The content is broad but well defined by the GPhC framework, so a focused plan over several months is usually enough.
How long should I revise for the GPhC exam?
Most trainees give themselves 3 to 4 months of consistent revision alongside their foundation training year, stepping it up in the final 6 to 8 weeks. What matters more than total hours is doing questions regularly, reviewing every mistake, and drilling calculations until they are automatic.
What is the pass mark for the GPhC exam?
There is no fixed pass mark. The GPhC sets the pass standard for each sitting using a standard-setting process, so it varies slightly from paper to paper, and it has typically sat around 70 percent. You must pass both Part 1 (calculations) and Part 2 (clinical) to pass overall. Always check the current GPhC candidate guidance for the exact rules for your sitting.
Is Part 1 (calculations) really the hardest part?
For many candidates, yes. Part 1 is 40 calculation questions and there is no room for careless slips, because a small arithmetic error turns a correct method into a wrong answer. The good news is that calculations are the most learnable part of the exam. If you drill them until they are automatic, Part 1 becomes the part you can most reliably secure.
What should I use to revise for the GPhC exam?
The current BNF and Medicines, Ethics and Practice (MEP) are your core references, backed by the GPhC framework so you know what is examinable. On top of that, the single most effective activity is practising exam-standard questions under timed conditions and reviewing every one you get wrong. A dedicated GPhC question bank like PassPharm is built for exactly this.
Can I use a calculator in the GPhC exam?
The assessment is computer based and the rules on calculators are set by the GPhC and can change, so always check the current candidate guidance for your sitting. Whatever is permitted, practise your calculations the same way you will sit them, so nothing on the day is a surprise.
Put the plan into practice
The single most effective thing you can do is answer exam-standard questions and review every mistake. Practise hundreds free, then go Pro for the full question bank, timed mock papers and EMQs.