MAR redaction removes patient and staff identifiers from a medicines administration chart, while the drug, dose, route, and timing grid stays untouched. That grid is the record of supply and administration the Human Medicines Regulations 2012 sit behind, and the nurse's signature against each entry is the attribution section 10 of the NMC Code requires. anonym.plus works locally so both survive on the master chart while the reuse copy is cleaned.
When this applies
MAR charts drive medicines-safety audits and pharmacy teaching. Each one names the patient and the administering nurse and carries the bed and the NHS number. Controlled drug entries also appear in the register the Misuse of Drugs Regulations 2001 require, which is never redacted.
How anonym.plus handles it
- Load a copy of the chart into anonym.plus on your device.
- It finds patient and staff names plus the NHS number and bed.
- The drug, dose, route, and time grid stays untouched.
- Black out items for audits, or swap them for analysis.
- Save the clean chart on your device.
What you need to provide
- The MAR or eMAR chart (PDF, DOCX, or EPR export).
- An operator (Redact for safety audits).
- Optional staff map for safety-incident review.
Patient data entity types detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Names | PERSON | patient header → [PATIENT] |
| Names | PERSON | nurse initials → [STAFF] |
| Record IDs | MEDICAL_RECORD_NUMBER | MRN → [MRN] |
| Location | LOCATION | Bed 14A → [BED] |
| Dates | DATE_TIME | 08:00 03/05 → [TIME] |
| Identifiers | UK_NHS | NHS 943 476 5919 → [NHS_NO] |
Compliance achieved
- Keeps the drug, dose, route, and timing grid that sits behind the supply and administration rules in the Human Medicines Regulations 2012 (SI 2012/1916).
- Leaves the separate controlled drugs register required by the Misuse of Drugs Regulations 2001 (SI 2001/3998) untouched — redact the chart copy, never the register.
- Nurse signatures and initials are the attribution section 10 of the NMC Code requires, and are personal data once the chart is reused.
- Medicines-optimisation audits under NICE guideline NG5 still run on the redacted grid.
- Meets DPA 2018 and the NHS Confidentiality Code of Practice for reuse.
- Offline — patient and staff data stay on site.
Anonymise medication records offline — see plans & start free →
Limitations & cautions
MAR charts are highly tabular. Check that the signature and initials columns are mapped, because staff initials are easy to miss yet identify the nurse. Drug names are clinical content and are not treated as identifiers. The controlled drugs register kept under the Misuse of Drugs Regulations 2001 is a statutory record and must never be altered.
Frequently asked questions
Are nurse initials personal data?
Yes. Initials and signatures identify the registered professional who administered the medicine, which is exactly why section 10 of the NMC Code requires entries to be attributed. In a reuse copy they are personal data and are removed; in the master chart they must stay.
Can I redact a controlled drugs register?
No. The register kept under the Misuse of Drugs Regulations 2001 is a statutory record with its own format and retention rules, and altering it is not an option. If you need controlled drug data for an audit, extract and de-identify a copy and leave the register itself alone.
Can I keep the dose data?
Yes. Drug, dose, route, and timing all stay, so the chart still supports medicines-safety audit and the medicines-optimisation work NICE guideline NG5 describes. Only the identifiers around the grid change.