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Pass the GPhC pharmacy registration exam.

Unlimited GPhC-style calculations for Part 1 — each worked through like a dispensed script, free. Then 2,347 BNF-sourced clinical questions for Part 2 of the pre-reg exam.

Or read worked examples of every calculation type first — no account needed.

CALCPASS DISPENSARY№ C-2231

DRIP RATE

A 500 mL infusion runs over 8 hours through a giving set delivering 20 drops/mL. What rate, in drops per minute?

21drops/minANSWER

DIRECTIONS

  1. 1.Total drops = 500 mL × 20 = 10,000
  2. 2.Time = 8 h × 60 = 480 min
  3. 3.Rate = 10,000 ÷ 480 = 21 drops/min
ON THE BENCH

A study tool that behaves like a dispensary.

Every answer is measured, checked against its source, and recorded — the way a pharmacy bench actually works. Three principles run through all of it.

PHARMAFLEDGE

Dispensed, not guessed

Each calculation is computed by a tested function and shown with its full method — the way you'd check a dose on the bench, one step at a time.

Checked by a pharmacist

2,347 clinical questions drawn from current BNF guidance and reviewed by a registered UK pharmacist, each carrying a named source.

Learns where you slip

Accuracy builds by topic as you practise, and the next question leans toward whatever keeps tripping you up. Reproducible, unlimited.

THE EXAM

What the pre-reg exam actually asks.

Officially the Common Registration Assessment, run jointly by the General Pharmaceutical Council (GPhC) and the Pharmaceutical Society of Northern Ireland, and sat twice a year, in June and November. Two papers on one day. Both parts must be passed at the same sitting; a strong Part 2 cannot make up for a weak Part 1, or the reverse.

New to it? Read the guide to preparing for and passing the GPhC registration assessment — free, no account needed.

PHARMAFLEDGE
PART 1 · PHARMACY AND HEALTHCARE CALCULATIONS
40
questions
120
minutes

Typed answers, no options.

  • Numerical free-entry — you type the number, there are no options to choose from
  • Approved calculator models allowed, plus an on-screen calculator
  • About 3 minutes a question
Practise calculations free →
PART 2 · SAFE AND EFFECTIVE PHARMACY CARE OF THE PUBLIC
120
questions
150
minutes

90 single best answers, 30 extended matching.

  • Single best answer (five options) and extended matching questions (eight options, one scenario each)
  • Approved calculator models allowed
  • 1 min per SBA · 2 min per EMQ
Open the clinical bank →

Figures from the GPhC’s Common Registration Assessment framework for sittings in 2026, checked 14 September 2026. Ready for the clock? Sit both papers as a timed GPhC-style mock exam →

THE CLINICAL BANK · PART 2

Single-best-answer questions, straight from the BNF.

A full rationale and a named source on every answer — the way Part 2 of the GPhC exam actually tests you. Here’s one:

ENDOCRINE · CARBIMAZOLE№ S-0050

A patient with Graves' disease is started on carbimazole. Which counselling point about a rare but serious adverse effect is essential?

  1. AReport a sore throat, mouth ulcers, or fever urgently, as carbimazole can rarely cause agranulocytosis (a white-cell count should be checked)✓ answer
  2. BExpect the urine to turn red
  3. CStop the drug permanently if mild nausea occurs on day one
  4. DTake it only when symptoms occur
  5. EIgnore any signs of infection
RATIONALE

Carbimazole is the recommended first-line antithyroid drug but can rarely cause agranulocytosis. Patients must be warned to report signs of infection — especially a sore throat — urgently, and a white-cell count should be performed if infection is suspected. If agranulocytosis develops, stop and do not restart. FBC and LFTs should be checked before starting.

BNF · Hyperthyroidism, antithyroid drugs

PLANS

Start free. Step up when you’re ready.

Calculations are free for everyone. Add the clinical bank for Part 2, and timed GPhC-style mock exams — both papers, under the clock.

PHARMAFLEDGE№ FREE
THE CALCULATIONS BENCH

Free

£0always free
No card, no trial clock. The calculations bench stays free.
  • Unlimited GPhC-style calculations practice
  • Full step-by-step working on every answer
  • Adaptive practice by topic
  • Clinical question bank
  • Timed, exam-style mock papers
Start practising →
MOST POPULAR№ PRO
EVERYTHING, BILLED MONTHLY

Pro

£19/month
£12/ month
Limited promotional offer — £12/month for the next 4 months, then £19/month.
  • Everything in Free
  • 2,347 BNF-sourced clinical SBA questions
  • Full rationale + named source on every answer
  • Three timed GPhC-style mock exams, both parts
  • Extended Matching Question sets in exam format
  • Progress tracking across clinical topics
Get Pro →
PHARMAFLEDGE№ SAVER
EVERYTHING, PAID ONCE

Saver

£149
£77/ 12 months
Time-limited offer — one-time fee for 1 year of access. No recurring billing.
  • Every question and paper Pro has — nothing held back
  • One payment, nothing to cancel
  • Cheaper than paying monthly for a year
Get Saver →

Prices in GBP. Twenty free clinical questions before you choose. Both paid plans include everything — Pro renews monthly and cancels from your account, Saver is a single payment for twelve months with nothing to cancel.

COMMON QUESTIONS

Questions trainees actually ask.

Straight answers, including the ones where the honest answer is that there isn’t a number.

What is the format of the GPhC exam?

Two papers, sat on the same day, on a computer. Part 1 is 40 pharmacy calculations in 120 minutes — about 3 minutes each — answered by typing a number, with no options to choose from. Part 2 is 120 questions in 150 minutes: 90 single-best-answer questions with five options, and 30 extended-matching questions, each answered from a shared list of eight. An approved calculator is allowed in both parts. Where a question needs a reference — an extract from the BNF or BNFC, a Summary of Product Characteristics, a prescription — it is supplied on screen with the question. Every question scores one mark and there is no negative marking, so nothing should be left blank.

When is the GPhC registration assessment held?

Twice a year, in June and November, with both parts sat on the same day. Entry closes weeks before the sitting, and the GPhC publishes the dates and deadlines for each one on its website, so the date to work back from is the entry deadline rather than exam day. Both parts must be passed at the same sitting; a strong Part 2 cannot make up for a weak Part 1, or the reverse. The pass mark is set for each paper separately so that the standard is the same whichever sitting you take — a harder paper carries a lower mark — which means you are not competing against the rest of the cohort, and there is no advantage in waiting for a “kinder” sitting.

What is the pass mark for the GPhC registration assessment?

There is no fixed percentage. The pass mark is set for each sitting through a standard-setting process, so it moves depending on how difficult that paper is judged to be — a harder paper carries a lower mark, and a candidate is never penalised for sitting a difficult version. Both parts must be passed. This is why “what percentage do I need?” has no useful answer, and why practising to a target score is less productive than practising until your method is reliable. Check the current requirements on the GPhC website, as assessment rules are periodically reviewed.

Is the registration assessment the same as the pre-reg exam?

Yes — same exam, newer names. The pre-registration year became the foundation training year in 2021, trainees are now called trainee pharmacists, and the exam is officially the Common Registration Assessment, run jointly by the General Pharmaceutical Council (GPhC) and the Pharmaceutical Society of Northern Ireland. Most candidates, tutors and revision groups still say “pre-reg exam” or “the GPhC exam”, and you will see all three used interchangeably. If you have been searching for pre-reg practice questions, everything here applies to you.

Where can I practise pre-reg exam questions for free?

Here, and without a card. The calculations bench is free and unlimited: every GPhC-style calculation is generated with fresh numbers, worked step by step, and marked by the same function that produced the answer — the whole of Part 1, at no cost, for as long as you want it. The worked-examples page shows one of every calculation topic before you even sign up. The clinical bank, for Part 2, gives you twenty questions free, each with a full rationale and a named BNF source, before asking you to choose a plan. Nothing on the free tier is time-limited.

How should I practise Part 1 calculations?

By method, not by memory. The most common failure is recognising a question type from a past paper and recalling its answer rather than its working — which collapses the moment the numbers change. Practise with generated questions where the values differ every time, work each one through to a written answer before checking, and treat a right answer reached by the wrong route as a failure. Pay particular attention to anything with a sex-dependent or unit-dependent constant, such as Cockcroft–Gault, where the arithmetic is easy and the setup is what catches people.

I qualified overseas. Can I use the same preparation?

The assessment is the same, but the preparation gap usually is not. Overseas-qualified pharmacists tend to be strong on pharmacology and less familiar with UK-specific practice: BNF conventions, units used in UK laboratory reporting such as serum creatinine in micromol/L, NHS prescribing frameworks, and the legal and ethical questions in Part 2. Prioritise BNF-sourced clinical questions where the source is named, so you are learning UK practice as it is actually written down rather than translating from another system.

Start with the calculations. They’re free.

No card needed. Unlock the clinical bank when you’re ready — 20 free questions, then from £12/month.