Six-weekly reviews explained

Overview

A six-weekly review is a structured clinical check, not a repeat-prescription formality. Six weeks is long enough for a dose step to show its effect and short enough to catch problems early.

The questions being answered

• Is it working? Roughly 0.5-1% of body weight a week is a good pace. NICE guidance for semaglutide sets an expectation of meaningful progress within the first months; persistent lack of response prompts a decision about continuing.
• Is it tolerated? Nausea, constipation, reflux and fatigue are reviewed against the current dose.
• Are the kidneys stable? Creatinine and eGFR are read against the weight trend. A rise during rapid loss points to dehydration until proven otherwise.
• Do other medicines need changing? Blood pressure tablets, diuretics, insulin and sulfonylureas very often need reducing as weight falls. This is one of the most valuable parts of the review.
• Is nutrition holding up? Protein intake, muscle strength and, where relevant, albumin.
• On dialysis: does the dry weight target still fit?

How to prepare

• Make sure every weekly weight is logged before the appointment.
• Bring or upload any recent blood results from your renal unit.
• Note the days when side effects were worst, and what you did about them.
• Bring an up-to-date medication list, including anything you have stopped.
• Write down your questions — they are easy to forget in the room.

Possible outcomes

• Continue the same dose.
• Step the dose up, if tolerance and results support it.
• Hold or reduce the dose, usually because of side effects or a kidney concern.
• Pause treatment while an issue is investigated.
• Stop treatment, if the benefit is not there or it is no longer safe.

Each outcome is recorded on your record with the reasoning, so the next review starts from a clear picture rather than memory.

Between reviews

Do not wait for a scheduled review if you have severe abdominal pain, cannot keep fluids down, are passing much less urine, or feel very unwell. Contact your renal unit or NHS 111 straight away, and call 999 in an emergency.

When to contact your care team

Contact the clinic promptly if you have any of the following:

• Vomiting or diarrhoea lasting more than 24 hours, or you cannot keep fluids down
• Passing much less urine than usual, or new swelling of the legs or face
• Severe pain in the upper abdomen that spreads to your back, with or without vomiting
• A weight change of more than 2 kg in a week that is not explained by fluid
• A missed weekly weight, a missed dose, or any hospital admission

If you are seriously unwell, contact NHS 111 or your renal unit directly rather than waiting for your next review.

References

• NICE TA875 — Semaglutide for managing overweight and obesity
• NICE TA1026 — Tirzepatide for managing overweight and obesity
• NICE NG203 — Chronic kidney disease: assessment and management
• NHS — Chronic kidney disease
• UK Kidney Association clinical practice guidelines

This page is general information, medically reviewed for accuracy.