The Board of Assessors flags pharmacy law as a consistent underperformance area across GPhC registration assessment sittings. Candidates know the clinical therapeutics — that maps to MPharm training and daily practice. Pharmacy law feels abstract, is tested through scenario application rather than recall, and trips candidates who know the principles but not the specific regulations.
This guide covers the three law areas that appear most frequently and are most commonly answered incorrectly.
Controlled Drug Schedules
The Misuse of Drugs Regulations 2001 classify controlled drugs into five schedules. The schedule determines the regulatory requirements for prescribing, dispensing, record-keeping, storage, and destruction.
Schedule 2 (CD POM): Full CD requirements. CD register entry required. Safe custody required. Prescription must include: dose in words and figures, form, strength, total quantity in words and figures, prescriber signature, date, patient name and address. Examples: morphine, diamorphine, fentanyl, oxycodone, methylphenidate, amphetamine.
Schedule 3 (CD No Register POM): CD prescription requirements apply. Safe custody required (with specific exceptions — temazepam and midazolam are exempt from safe custody). No CD register entry required. Examples: tramadol, buprenorphine, midazolam, temazepam, gabapentin, pregabalin.
Schedule 4 Part I: Benzodiazepines (except temazepam and midazolam — these are Schedule 3). No CD prescription requirements. No safe custody. No CD register.
Schedule 4 Part II: Anabolic steroids. No CD prescription requirements.
Schedule 5: Low-strength preparations containing small amounts of CDs. Can be supplied without a prescription in some cases.
The exam trap: Confusing Schedule 2 and Schedule 3 requirements. The question typically presents a CD prescription and asks whether it is valid — the answer depends on whether the drug is Schedule 2 (full CD prescription requirements) or Schedule 3 (same prescription requirements, but no register entry needed). Another common trap: knowing that tramadol moved to Schedule 3 in 2014 and gabapentin/pregabalin were classified as Class C controlled drugs (Schedule 3) in 2019.
CD Register Requirements
The CD register is required for Schedule 2 controlled drugs only. The register must be maintained in the prescribed format — bound book (or compliant electronic system), entries in chronological order, no cancellations (errors must be bracketed and corrected with a footnote), and separate pages for each preparation and strength.
Required entries: Date of supply or receipt, name and address of person or firm supplied, quantity supplied or received, form and strength, and running balance.
The exam trap: Knowing that Schedule 3 drugs do not require CD register entry (despite requiring CD prescription format and safe custody). A question presenting a tramadol prescription and asking about register requirements — the answer is no register required.
Responsible Pharmacist Regulations 2008
The Responsible Pharmacist (RP) is the pharmacist in charge of the pharmacy at any given time. Every registered pharmacy must have a named RP during opening hours.
Key regulations: The RP must make a record (the RP record) including their name, registration number, and the date and time they assumed responsibility. The RP can be absent from the premises for up to 2 hours during the RP period, provided the pharmacy procedures are in place and the absence is planned. During the RP's absence, certain activities are restricted — specifically, the sale or supply of medicines cannot be made under the supervision of a non-pharmacist during an absence.
The exam trap: Questions about RP absence — candidates confuse the 2-hour absence allowance with unlimited absence. The RP can be absent for up to 2 hours, but the pharmacy must have procedures covering the absence, and the RP must be contactable. Exceeding 2 hours or failing to maintain procedures during absence is non-compliant.
Drilling Law Questions Adaptively
iatroX law and governance questions are presented in clinical scenario format — not abstract rule recall. The adaptive engine tracks which law topics you struggle with (CD schedules, emergency supply, RP regulations, prescription validity) and serves more of those. Explanations reference the specific legislation.
Start at iatrox.com/quiz-landing?exam=uk-gphc.