The problem is not visibility alone
England already has electronic prescribing, shared-care viewing and transfer-of-care services. The remaining operational gap appears when a medicine is started, stopped, changed or cannot be supplied in one setting while an old repeat, dispensing instruction or administration record remains active elsewhere.
The CareGrid thesis is that a medication decision needs more than a record. It needs a signed source, a defined recipient, a named next action, acknowledgement and a resolved state.
Build on NHS foundations, do not duplicate them
Electronic Prescription Service
Keep the signed prescription transaction and connect change context to cross-provider ownership.
Summary / Shared Care Records
Keep authoritative viewing and provenance, then add actionable workflow, acknowledgement and resolution.
Discharge Medicines Service
Build on transfer and reconciliation by making shared status and closure measurable.
NHS App and oversupply analytics
Reuse status and signals where possible, then turn them into owned interventions rather than creating another portal.
Six operating rules
Read
Authorised staff see a reconciled current medication view with provenance.
Change
An appropriately authorised prescriber signs starts, stops and changes with reason and effective time.
Notify
Affected teams receive the structured medication-change event.
Acknowledge
A named team accepts the next action; silence remains visible and can escalate.
Close
Repeat, supply or administration records are reconciled and the outcome is recorded.
Learn
Verified waste and balancing safety outcomes are attached once to the event.
The full medication loop crosses every setting
The model spans general practice, community pharmacy, urgent care, admission, inpatient wards, discharge, tertiary care, mental health, hospital homecare, community nursing, care homes, hospice, supported living and emergency transfer. Each setting needs appropriate permissions and interfaces, but the event semantics should remain consistent.
A medicine is stopped in hospital
In a fragmented pathway, the discharge record may change while the GP repeat or pharmacy workflow stays active until someone notices. In the proposed CareGrid pathway, the hospital prescriber creates a signed stop event, the GP and nominated pharmacy receive the same structured event, a named team accepts the reconciliation task, supply status is recorded, and the event closes only when the downstream records have been reconciled.
The important design choice is that nothing is silently overwritten. Conflicting sources remain visible until an accountable professional resolves them.
Patient value without making the patient the workflow engine
The core system should work even if a patient has no smartphone or never enters data. Better reconciliation can still mean fewer obsolete supplies, less chasing, safer transitions and clearer communications. A later patient companion could add reminders, stock reporting and discrepancy reporting, but patient input should remain a signal rather than an autonomous instruction to stop or withhold medication.
Pilot before national claims
The paper recommends a controlled Lancashire discovery and alpha using synthetic data first, followed by clinical-safety and information-governance work and then shadow-mode evaluation. The first use cases are deliberately narrow: a stopped medicine still due for supply, duplicate supply after discharge, and a care-home repeat/stock mismatch.
The historic £300 million medicines-waste estimate is used as a size-of-opportunity benchmark, not as a 2026 audit or a savings promise. Any pilot should separately measure safety, verified prevented supply, staff time, patient effort and cash-releasing value.