Top 6 medication mistakes at weekends - and how a GP service prevents them

Weekends create a perfect storm for medication errors in care homes, with thinner staffing, patchy pharmacy access and rapid decisions increasing the risk of deterioration, ambulance calls and avoidable admissions.

This post explains the six common medication mistakes you see at weekends, the practical harm they cause, and a single, clear set of ways a doctor-led out-of-hours GP service prevents them in everyday care-home practice

1) Missed or delayed time-critical doses

What: Insulin, Parkinson’s medicines (levodopa), anticoagulants or other time-critical drugs aren’t given on schedule.
Why it happens at weekends: Staff ratios are lower and handovers may be thinner; on-call clinicians can be slower to authorise changes.
Consequence: Clinical deterioration, A&E attendance or longer stays. Timely medicines are often the difference between stable care at the home and emergency escalation.
How a weekend GP service prevents it: Remote GP review via teleconsultation establishes whether a missed dose is clinically urgent and can authorise immediate action (e.g., urgent prescription, onsite nurse instruction), removing uncertainty for staff.

2) Running out of repeat medication (no urgent supply)

What: Resident runs out of regular medicine & no routine dispensing is available until Monday.
Why it happens: Weekend pharmacies have limited opening; prescription reauthorisation can be delayed without an on-call GP.
Consequence: Missed chronic therapy, symptom relapse or escalation to emergency care.
How a weekend GP service prevents it: A doctor-led teleconsult can issue a same-day prescription and, where available, arrange doorstep delivery so the resident gets the medicine without hospital transfer. Evidence shows improving weekend medicine access reduces pressure on urgent care.

3) Unclear records and sudden PRN (as-needed) use

What: PRN orders are ambiguous, or staff are unsure whether a GP previously authorised a change which led to under- or over-medication.
Why it happens: Handover notes and MAR charts may be incomplete during shift changes or weekend agency staff.
Consequence: Inadequate symptom control, increased falls, sedation or adverse events.
How a weekend GP service prevents it: A remote GP can quickly review the resident’s records, clarify PRN thresholds, update the MAR and provide written instructions the team can follow immediately. This supports good governance expected by CQC/NICE.

4) Inappropriate medication changes without review

What: Well-intentioned but unvetted changes (e.g., starting laxatives, PRN antipsychotics or antibiotics without clinical review).
Why it happens: Staff attempt to manage symptoms when GP access feels distant.
Consequence: Interactions, side effects, or masking of an underlying problem that worsens.
How a weekend GP service prevents it: An on-call GP can assess the resident (video or call), recommend non-drug measures where appropriate, or advise safe, short-term prescriptions with a documented plan and follow-up. This avoids ad-hoc, unrecorded medication decisions.

5) Delayed or missing medication reconciliation after transfer/acute episode

What: A resident returns from hospital or urgent care and medicines haven’t been reconciled with the home’s MAR.
Why it happens: Discharge communication can be poor and weekend pharmacy/GP support limited.
Consequence: Duplication, omission or harmful interactions.
How a weekend GP service prevents it: Rapid telehealth review with access to records allows a GP to reconcile medicines, authorise urgent changes and update the MAR so staff know exactly what to give. Seven-day pharmacy and timely reconciliation improve outcomes.

6) Controlled drugs (CD) handling and authorisation problems

What: Controlled drugs need specific prescriptions, correct ordering and strict records. Gaps at weekends can delay necessary CD administration.
Why it happens: Limited prescribers with CD access, and community pharmacy constraints.
Consequence: Uncontrolled pain, distress or inappropriate escalation.
How a weekend GP service prevents it: A doctor-led service with clinicians authorised to prescribe CDs (or with escalation pathways) can provide authorised prescriptions or arrange safe, documented alternatives and coordinate with pharmacies/ambulance services if needed. This supports CQC expectations around secure medicine supply.

Summary

A GP-led out-of-hours service turns these six weekend medication risks into safer, more predictable care. With fast access to a frailty-aware doctor and same-day prescriptions and delivery, homes can avoid the guesswork that drives deterioration, ambulance calls and preventable admissions.

If you want to see how this would work for your home, you can join the waiting list for 48 hours of free weekend GP support tailored to your care home by reaching out https://rtcgp.co.uk/contact