Why monitoring matters

Monitoring helps a GP to:

  • confirm a medicine is working as intended
  • detect side effects early
  • reduce the risk of harm
  • decide whether the dose or plan should change

Monitoring is especially important when medicines affect organs such as the kidneys or liver, influence blood pressure, or carry risks that increase over time.

Monitoring depends on the medicine and the condition being treated. It may include:

  • blood pressure or pulse checks
  • blood tests, for example kidney function or liver function
  • weight or symptom review
  • ECG monitoring for certain medicines
  • review of side effects, adherence, and benefit

Not every medicine needs all of these, and many people only need occasional review once stable.

Follow-up is where the prescribing plan is reviewed and adjusted if needed. It is common for medicines to be started as a trial, then reviewed to confirm:

  • symptoms have improved
  • side effects are acceptable
  • the medicine is still needed
  • there is a clear plan for continuing, changing, or stopping

For long-term treatment, follow-up ensures the medication remains appropriate as circumstances change.

If monitoring checks are overdue, a GP may recommend review before continuing prescriptions. This is not a punishment or a refusal to help. It is usually a safety requirement.

In some cases, a short supply may be issued to allow time for monitoring to be arranged. In others, continuing without checks may be unsafe and the medication may need to be paused until review is completed.

Monitoring in remote GP care

Remote GP consultations can support many medication reviews, particularly when symptoms and side effects can be discussed clearly. Some monitoring requires in-person measurements or tests, such as blood pressure readings or blood tests.

If tests or observations are needed, a GP can advise on the safest way to arrange these and how to follow up with results.

Shared care and specialist monitoring

Some medicines are started by specialists and require shared care arrangements. In these situations, monitoring responsibilities may be shared between specialist services and primary care.

A GP may need clear specialist guidance before continuing certain treatments, particularly where specific monitoring schedules are required.


Further Reading and Hub Links

Visit our Medication and Prescribing hub or browse more health topics in the AccessGP Knowledge Base.

If you are unsure about monitoring, follow-up, or next steps for a medication, a GP can help guide you on the safest next step.

Last reviewed by Dr Zamiel Hussain, GMC registered GP
Updated: 6 February 2026