Why Do GPhC Inspectors Focus on Controlled Drugs?

Introduction

Controlled drugs carry a level of risk that ordinary medicines don’t, both in terms of diversion and patient harm, which is why the General Pharmaceutical Council pays particularly close attention to how they’re handled in community pharmacy. A controlled drugs audit isn’t a single checklist item; it runs across several parts of pharmacy operations at once, from paperwork to physical storage to staff behaviour to the overall culture around compliance.

Inspectors approach controlled drugs differently from general medicines because the consequences of a gap are more serious. A missing entry in a general stock count might be a minor administrative issue. A missing entry in a controlled drugs register raises questions about where that stock actually went, who had access to it, and whether the pharmacy’s systems would catch a genuine diversion if one occurred. This is why the audit tends to be more forensic in nature, working backwards from physical stock to paper records and cross-checking at every stage.

Understanding what inspectors actually look at, and why, makes it far easier for pharmacy teams to stay audit-ready year-round, rather than scrambling in the days before a scheduled or unannounced visit.

2.How Are Controlled Drugs Registers Checked?

The controlled drugs register is usually one of the first things an inspector examines, and it’s checked in detail rather than skimmed. Inspectors typically look for entries made at the time of transaction rather than backfilled later, running balances that are mathematically correct and match physical stock counts, and clear identification of who supplied or received each entry, including full names rather than initials where required.

Any discrepancy between the register and the physical stock on the shelf is treated seriously, even if it turns out to be a simple recording error, because it points to a gap in the process rather than just a one-off mistake. Inspectors will often ask staff to walk through how a discrepancy would be investigated, not just whether one currently exists.ther the record-keeping process itself is robust enough to catch errors or irregularities as they happen.

Digitised registers can reduce these errors significantly, since automatic balance calculations remove the risk of manual arithmetic mistakes that often trigger further scrutiny. They also make it easier to demonstrate a clean audit trail, since entries are timestamped automatically and can’t be altered retroactively without leaving a visible record.

3. What Storage and Security Standards Are Inspected?

Inspectors assess physical security alongside the paperwork and treat it as a separate check rather than a formality. They confirm that controlled drugs cabinets meet the required standard for construction and locking mechanisms, that keys are held securely and are accessible only to authorised staff, and that the cabinet is fixed appropriately to a wall or floor and located away from public access points such as the shop floor or unsupervised consultation areas.

They’ll also look at how access is logged, particularly in pharmacies where multiple staff members have cabinet access across different shifts. In larger pharmacies or those with high staff turnover, inspectors are especially interested in whether there’s a clear, current list of who holds keys and whether that list is updated when staff leave or change roles.

It’s worth noting that storage compliance isn’t just about having the right cabinet in place. Inspectors are increasingly interested in the day-to-day discipline around it, such as whether the cabinet is left open during busy periods, whether keys are handed off informally between staff without any record, or whether the cabinet is used to store anything other than controlled drugs, which can itself be a compliance issue. These behavioural details often say more about a pharmacy’s actual risk profile than the cabinet specification alone.

4.How Is Destruction and Disposal of Controlled Drugs Reviewed?

Destruction records are checked for the same level of detail as the register itself, and this is an area where many pharmacies fall short simply because destruction happens less frequently than dispensing and can be treated as an afterthought. Inspectors typically want to see denaturing carried out correctly using an approved kit or method, the presence of an authorised witness for the relevant schedules, and destruction entries that are dated, signed, and cross-referenced back to the original register entry so the full chain from receipt to disposal is traceable.

Gaps here, such as drugs marked for destruction in the register but with no corresponding record of the physical process being completed, are a common finding during inspections. Inspectors may also ask to see the destruction kit or waste receptacle itself to confirm it’s being used appropriately and disposed of through a licensed route.

Patient-returned controlled drugs are given particular attention, since these sit outside the pharmacy’s own ordering and dispensing chain and are more likely to have incomplete documentation if processes aren’t followed consistently. A returned medicine that arrives without clear labelling or provenance can create ambiguity about quantity and identity, which is exactly the kind of gap inspectors are trained to notice.

5.What Role Does Staff Training and SOP Compliance Play?

Beyond the paperwork and the cabinet itself, inspectors assess whether staff actually understand the standard operating procedures they’re meant to be following, and this is often the part of the audit that catches pharmacies off guard. This tends to come up through informal questioning during the visit, such as asking a staff member to explain the process for receiving a CD delivery, handling a discrepancy, or what they would do if a patient requested an early repeat of a controlled drug prescription.

A pharmacy can have excellent SOPs on paper, reviewed and signed off by the superintendent pharmacist, but if staff on the floor can’t describe the process accurately or consistently with one another, it signals a training gap that inspectors will note. This is particularly common in pharmacies with several team members who only occasionally handle controlled drugs, where knowledge tends to concentrate in one or two experienced staff rather than being spread across the team.

Regular internal audits and refresher training help close this gap, particularly in pharmacies with high staff turnover. Some pharmacies build short, recurring training checkpoints into their rota specifically so that CD handling knowledge doesn’t quietly lapse between inspections.

6.How Can Pharmacies Prepare for a Controlled Drugs Audit?

The pharmacies that handle GPhC inspections most comfortably tend to treat controlled drugs compliance as an ongoing routine rather than an occasional task ahead of a known visit. Regular reconciliation between the register and physical stock, scheduled internal checks on storage security, periodic staff refreshers, and a habit of investigating even small discrepancies as they arise all reduce the chance of surprises during an actual inspection.

It also helps to run a mock audit occasionally, treating it with the same seriousness as a real GPhC visit, to surface any gaps in documentation or staff knowledge while there’s still time to address them.

For pharmacies looking to reduce the manual burden of this process, PharmaEscalator’s controlled drugs module supports accurate, real-time register entries and simplifies reconciliation, helping pharmacy teams stay consistently audit-ready without relying on manual cross-checks alone.

Frequently Asked Questions