10 Common GPhC Exam Mistakes and How to Avoid Them

Every year, thousands of pharmacy graduates sit the GPhC Registration Assessment. Many pass comfortably. Others fall short — not because they lacked the knowledge, but because they fell into predictable traps during their preparation or on exam day itself.

The good news is that these mistakes are well-known, entirely avoidable, and easy to correct once you are aware of them. Whether you are months away from your sitting or weeks into revision, understanding these pitfalls can make a genuine difference to your result.

Here are the ten most common GPhC exam mistakes and, more importantly, how to avoid each one.

1. Starting Revision Too Late

This is perhaps the most widespread mistake of all. A surprising number of candidates leave serious revision until four to six weeks before the exam, convincing themselves that a short, intense burst will be enough.

The GPhC Registration Assessment covers an enormous breadth of material — therapeutics, law and ethics, pharmaceutical calculations, clinical decision-making, and pharmacy practice. Trying to consolidate all of that into a few weeks is not just stressful; it is genuinely ineffective. You end up skimming topics rather than understanding them, and retention drops sharply when you are cramming under pressure.

How to avoid it: Start your revision three to six months before your exam date. You do not need to go full intensity from day one — even two or three focused sessions per week in those early months will build a strong foundation. Create a revision timetable that covers every major topic area, and front-load the subjects you find most difficult. The earlier you start, the more time you have to revisit weak spots and consolidate your understanding.

2. Neglecting Calculations

Part 1, the calculations paper, has its own passing score. You must pass Part 1 and Part 2 in the same sitting, and a strong Part 2 cannot make up for a weak Part 1: fall short on calculations and you fail the whole assessment, however well the clinical paper went.

Despite this, many candidates disproportionately focus their revision on Part 2 because it has more questions (120 versus 40) and covers a wider range of topics. Calculations get treated as an afterthought, something to "brush up on" in the final week. This is a serious miscalculation — if you will pardon the expression.

How to avoid it: Treat Part 1 as its own exam. Dedicate specific revision sessions to calculations throughout your preparation period, not just at the end. The framework names nine calculation types: concentrations, dilutions, displacement volumes, dose and dosage regimens, infusion rates, medical statistics, pharmacoeconomics, pharmacokinetics and quantities to supply. Every question is multi-step, so practise each type until the method is second nature. A calculator is allowed in both parts, so practise with the one you will use on the day: the on-screen calculator, or one of the GPhC's approved models. If calculations are a particular weakness, consider starting your revision there — it is far easier to improve a weak area over three months than over three days. Our guide to preparing for GPhC calculations takes each type in turn.

3. Passive Reading Instead of Active Recall

Highlighting textbook passages, re-reading lecture notes, and copying out summaries all feel productive. They are familiar, comfortable study activities. Unfortunately, they are also among the least effective ways to learn and retain information.

The research on this is clear. Passive review creates a false sense of familiarity — you recognise the material when you see it, so you assume you know it. But recognition is not the same as recall. In the exam, you need to retrieve information from memory under pressure, not simply recognise it on a page.

How to avoid it: Build your revision around active recall — the practice of testing yourself on material rather than passively reviewing it. Use practice questions, flashcards, and self-testing as the core of your study sessions. After reading a topic, close the book and try to write down the key points from memory. When you get something wrong, that is valuable information — it tells you exactly where the gap is. Active recall is harder and less comfortable than re-reading, which is precisely why it works so much better.

4. Not Practising Under Timed Conditions

The time pressure in the GPhC exam is real, particularly in Part 2. With 120 questions to answer in 150 minutes, you have roughly one minute and fifteen seconds per question. That is enough time if you are well-practised, but it can feel impossibly tight if you have never worked under those constraints before.

Many candidates practise questions at their own pace — pausing to look things up, taking breaks between sections, spending five minutes on a single question. This builds knowledge, but it does not build the speed and decision-making stamina you need on exam day. The result is candidates who know the material but run out of time, leaving questions unanswered or rushing through the final section.

How to avoid it: Incorporate timed practice into your revision from at least six to eight weeks before the exam. Start with individual topic blocks — give yourself a set number of questions and a proportionate time limit. As the exam approaches, do full-length mock papers under realistic conditions. Sit down, set a timer, and work through without interruption. This trains you to manage your pace, make quick decisions on difficult questions, and build the mental endurance needed for a long exam day. If you find yourself consistently running over time, it is a signal to practise more — not to hope it will be different on the day.

5. Revising to an Out-of-Date Framework

Older revision guides, and plenty of notes passed down from previous cohorts, quote a percentage weighting for each area of the assessment. The 2026 framework does not give one. It lists fifteen clinical areas in the order they are most often assessed, from cardiovascular down to drug toxicity, alongside law, governance and regulation and a list of high-risk drug classes. A timetable built around percentages that no longer exist plans for an exam you will not sit.

The same goes for other details that have changed: prescribing is not assessed, extended matching questions come in pairs, and the one format is sat by every candidate in Great Britain and Northern Ireland.

How to avoid it: Read the current GPhC framework before you plan your revision, rather than relying on a guide written for an earlier sitting. Cover every area, since any of them can appear, and give more time to those near the top of the list and to your own weak spots. Our summary of what changed in 2026 sets out the differences.

6. Not Practising With BNF Extracts

You cannot take a BNF into the assessment. Instead, where a question needs a reference, an extract is supplied inside it: from the BNF or BNF for Children, a summary of product characteristics, a MAR chart or a guideline. Reading these quickly is a genuine advantage, because an extract only helps if you can find the line that matters before the clock moves on. Common guidelines are not supplied at all, so those you still need to know.

The problem is that many candidates never practise this during revision. They either try to memorise everything or assume they will figure it out on the day. Neither approach works well. If you have not practised pulling information out of a monograph under time pressure, you will waste precious minutes on an extract that a more prepared candidate reads in seconds.

How to avoid it: Use the BNF actively during your revision. When a practice question turns on specific drug information, look it up — and time yourself doing it. Learn the structure of a monograph: where the cautions, interactions, side effects and dose adjustments sit. The goal is not to memorise the BNF but to develop fluency in reading it, so that an extract on screen feels familiar. On exam day, this fluency translates directly into saved time and more confident answers.

7. Skipping Weak Areas

Human nature is to gravitate towards what we enjoy and what we are good at. If you find therapeutics interesting, you will happily spend hours revising cardiovascular drugs. If law and ethics makes your eyes glaze over, you will put it off indefinitely.

This tendency is understandable but counterproductive. The topics you already know well offer diminishing returns — an extra hour on your strongest subject might gain you one or two marks. The same hour spent on a weak area could gain you five or ten. Weak areas are where the biggest mark gains are hiding, and avoiding them is one of the costliest mistakes you can make.

How to avoid it: Identify your weak areas early by doing a diagnostic assessment or a broad set of practice questions across all topics. Be honest with yourself about the results. Then, deliberately schedule more time for those weaker subjects. It will not be as enjoyable as revising your favourite topics, but it is far more effective. A useful technique is to alternate between strong and weak topics in your study sessions — tackle a difficult subject first when your concentration is fresh, then move to something you find easier as a reward.

8. Cramming the Night Before

The temptation to squeeze in a few more hours of revision the night before the exam is strong. It feels like the responsible thing to do — one last push to cover that topic you have been avoiding, or a final run-through of your notes.

In reality, cramming the night before is more likely to hurt your performance than help it. Sleep is not a luxury; it is a critical component of cognitive function. Memory consolidation, attention, problem-solving, and decision-making all depend on adequate rest. Research consistently shows that sleep deprivation impairs exactly the mental faculties you need most in an exam. Staying up late to cram trades a small amount of additional knowledge for a significant drop in your ability to use what you already know.

How to avoid it: Set a hard stop on revision the evening before the exam. Do something light and relaxing instead — go for a walk, watch something enjoyable, have a good meal. Aim for seven to eight hours of sleep. If you feel anxious, remind yourself that the work is already done. No amount of last-minute reading will outweigh the benefit of arriving at the exam centre well-rested, clear-headed, and calm. Trust your preparation.

9. Not Reviewing Wrong Answers

Getting a practice question wrong is not a failure — it is one of the most valuable things that can happen during revision. A wrong answer pinpoints exactly where your understanding is incomplete or your reasoning went astray. But only if you actually stop and review it.

Too many candidates treat practice questions like a test score. They check their percentage, feel good or bad about it, and move on to the next set. The questions they got wrong — the ones that contain the most useful information — are never revisited. This turns practice into a performance metric rather than a learning tool, and it wastes an enormous amount of potential improvement.

How to avoid it: Every time you get a question wrong, stop and work out why. Did you misread the question? Did you not know the relevant fact? Did you know the fact but apply it incorrectly? Each of these requires a different response. Keep a record of your wrong answers and the topics they relate to — patterns will emerge that highlight your genuine weak spots. Periodically revisit questions you previously got wrong to check whether you have actually closed the gap. This review process is where the real learning happens, and it is what separates candidates who plateau from those who keep improving.

10. Relying on a Single Resource

No single textbook, question bank, or revision course covers every angle of the GPhC Registration Assessment. Each resource has its own strengths, blind spots, and style of questioning. Candidates who rely exclusively on one source risk developing a narrow understanding that leaves gaps in their preparation.

This is particularly true for practice questions. If you only use one question bank, you become familiar with that bank's question style and phrasing. The exam itself may present information differently, and candidates who have only seen one format can find themselves thrown by unfamiliar question structures — even when they know the underlying material.

How to avoid it: Use a mix of resources. Combine a core textbook with practice questions from more than one source, BNF-based study, the GPhC's own example questions, and full timed mock papers. The GPhC does not publish past papers, so be wary of anything sold as one. Each resource you add gives you a slightly different perspective on the same material, which strengthens your understanding and makes you more adaptable on exam day. That said, do not spread yourself so thin that you never engage deeply with anything. Two or three well-chosen resources used thoroughly will serve you far better than six used superficially.

You Have Got This

The GPhC Registration Assessment is a challenging exam, but it is not an unpredictable one. The format is known, the topic areas are published, and the skills it tests — clinical reasoning, accurate calculation, sound professional judgement — are the same skills you have been developing throughout your degree and foundation training.

By avoiding these common mistakes, you give yourself every advantage. Start early, study actively, practise under realistic conditions, and take your weak areas seriously. The candidates who pass comfortably are rarely the most naturally gifted — they are the ones who prepared intelligently and consistently.

If you are looking for a structured way to put these principles into practice under real conditions, Dose Up's GPhC mock exams are full-length papers, each a Part 1 and a Part 2 written to the GPhC's 2026 framework and timed to the real allowances, with a worked answer to every question and your results by area. You can try free GPhC practice questions from both parts first, with no account needed.

Whatever resources you choose, the most important thing is to start — and to keep going. Good luck with your preparation.