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Someone in my family might need a GLP-1. How do I help?

For anyone helping a parent, partner or relative decide, and then supporting them through it.

GLP Guidebook teamUpdated 12 Oct 20264 min read15 sourcesWritten from published sources
The short answer

Read the basics together, talk without blame, and go to the appointment with them if they'd like you there. Weight is driven by genes and surroundings, not just willpower. GLP-1 medicines are usually long-term. On the NHS they cost a prescription charge in England or nothing elsewhere in the UK, but NHS access is limited; privately, you pay for every pen. Older parents need extra care with fluids, low sugar and muscle.

Read this page first. It covers how to bring it up, who pays, what to watch for in an older parent and how to prepare for the appointment. At the end, three guides take you further, in order.
On this page
  1. Talking without shame
  2. Who pays, and for how long
  3. An older parent
  4. Going to the appointment
  5. The risks, in brief
  6. What to read next
  7. Sources

How do I bring it up without shame?

Talk about health and how they feel, not how they look. And drop the blame.

A group of international experts agreed that obesity is not a choice.1 It comes mainly from genes and the world around us.1

Shame also backfires. People who fear being judged are less likely to seek care.1

  • Avoid words like "lazy" or "greedy", even as a joke. The experts' pledge rejects them.1
  • Start from what they care about: energy, knees, sugar levels, keeping up with grandchildren.
  • Ask "How can I help?" rather than telling them what to do.
  • Ask before you share their health with other relatives.

Who pays, and for how long?

Plan for a cost that may run for years, not weeks.

Most of the weight usually returns after stopping. In a follow-up of the main semaglutide 2.4 mg (Wegovy) trial, people regained about two-thirds of it within a year of stopping.2 So agree early who pays, and for how long.

On an NHS prescription:

  • England: £9.90 per item, and one pen is one item. A prepayment certificate caps the cost at £32.05 for 3 months or £114.50 for 12 months.3 People whose diabetes is treated with medicines can get a medical exemption certificate and pay nothing.4
  • Scotland, Wales and Northern Ireland: NHS prescriptions are free.5,6,7

But NHS access for weight is limited and differs by nation. In England, for example, Wegovy for weight is only given through specialist services, for up to 2 years.9 Guide 6 explains who qualifies where.

On a private prescription, you pay the full price, and free-prescription rules don't apply. For a sense of scale, these are the makers' list prices for one pen (4 weekly doses, about a month), before VAT, as published by NICE:

  • Mounjaro: £133 at the 2.5 mg starting dose, rising to £330 at 12.5 mg and 15 mg (since 1 September 2025).8
  • Wegovy: £73.25 at the starting doses, rising to £175.80 at 2.4 mg (published in March 2023; we found no newer official figure).9

Pharmacies and clinics set their own private prices, and higher doses usually cost more. The cost calculator works out a year's total.

What should I watch for in an older parent?

Older adults do take these medicines. Watch three things closely: fluids, low sugar and muscle.

In the main Ozempic trials, 744 people, about 1 in 4 of those taking part, were 65 or older. No overall differences in safety or effect were seen between older and younger people.10

  • Fluids. Vomiting or diarrhoea can dry them out and harm the kidneys.10 Check they're drinking enough, especially in hot weather or when they're unwell.
  • Low sugar. If they take insulin or a sulfonylurea (an older diabetes tablet such as gliclazide), the risk of a hypo (low blood sugar) goes up.10 Learn the signs: dizziness, sweating, shakiness, confusion.10
  • Muscle. Part of the weight lost is lean mass (everything that isn't fat, including muscle), and older age raises the risk of muscle loss (sarcopenia).11 Ask the doctor about protein and safe exercise.
  • Other tablets. These medicines slow the stomach, which can change how other tablets are absorbed.10 Keep a full list of everything they take.

Should I go to the appointment with them?

If they'd like you there, yes. A second pair of ears helps, and you'll both hear the same advice.

Know which route you're on. All GLP-1 medicines are prescription-only.12 On the NHS, the GP is usually the first step, but some areas of England contact eligible people directly for Mounjaro and ask them not to book a GP appointment about it unless invited.13 Privately, the MHRA says a consultation with a healthcare professional must happen before a prescription is issued, and the medicine should never come from a beauty salon or social media.12

Take with you

  • A list of all their medicines, including herbal remedies and anything bought online
  • Recent results: HbA1c, kidney tests, blood pressure readings
  • "Which medicine and dose, and why this one?"
  • "Which side effects should we call you about?"
  • "How will we know it's working, and when do we review?"
  • "Can this be on the NHS, or will it be private? What will each month cost?"
If they have diabetesShould they consider it?Cost calculator

What to read next, in order

These three guides go deeper. Each one ends with a link to the next, so you can read them one after another.

  1. 1Weight and health: what BMI and waist numbers meanGuide 1 of 9UnderstandUnderstand their numbers first: BMI, waist-to-height, and NICE's lower thresholds for some ethnic groups.
  2. 2Should I consider a GLP-1? And when not toGuide 4 of 9DecideWho prescribers may consider for a GLP-1, and the reasons not to, including age and kidneys.
  3. 3Side effects and risksGuide 5 of 9DecideKnow the side effects together, so you both know which ones need help fast.
Was this page easy to understand?

Sources

  1. Rubino F et al. Joint international consensus statement for ending stigma of obesity. Nature Medicine, 2020;26:485–497. Statements 6.2 and 10.3, and Box 1. Declared interests: 15 of 36 authors declare ties to Novo Nordisk and 2 to Eli Lilly; Novo Nordisk was one of the sponsors of the meeting's travel costs (paper's own declaration). Full text
  2. Wilding JPH et al. Weight regain and cardiometabolic effects after withdrawal of semaglutide: the STEP 1 trial extension. Diabetes, Obesity and Metabolism, 2022;24(8):1553–1564. 327 people followed for a year after stopping. DOI
  3. NHS Business Services Authority. NHS prescription prepayment certificate (PPC): £9.90 per item in England; PPC £32.05 for 3 months, £114.50 for 12 months. Checked 12 October 2026. Link
  4. NHS Business Services Authority. Medical exemption certificates (covers "diabetes mellitus, except where treatment is by diet alone"). Checked 12 October 2026. Link
  5. NHS inform (Scotland). Prescriptions ("Prescriptions in Scotland are free"). Checked 12 October 2026. Link
  6. Welsh Government. Free prescriptions. Checked 12 October 2026. Link
  7. nidirect (Northern Ireland). Help with health costs ("All prescriptions dispensed in Northern Ireland are free of charge for everyone"). Checked 12 October 2026. Link
  8. NICE. Tirzepatide for managing overweight and obesity. Technology appraisal TA1026, section 2.3 (list prices "for a 4-week supply… £133.00 for 2.5 mg, £180.00 for 5 mg, £255.00 for 7.5 mg and 10 mg, £330.00 for 12.5 mg and 15 mg", excluding VAT). Link
  9. NICE. Semaglutide for managing overweight and obesity. Technology appraisal TA875, 8 March 2023. Recommendation 1.1 (specialist services, maximum 2 years) and section 2.3 (list prices per pen of 4 doses, excluding VAT: £73.25 for 0.25, 0.5 and 1 mg; £124.53 for 1.7 mg; £175.80 for 2.4 mg). Link
  10. Novo Nordisk. Ozempic (semaglutide) injection, US prescribing information and Medication Guide, revised May 2026. Sections 4, 5.3, 5.5, 5.6, 7.2, 8.5. (US label.) PDF
  11. Neeland IJ, Linge J, Birkenfeld AL. Changes in lean body mass with glucagon-like peptide-1-based therapies and mitigation strategies. Diabetes, Obesity and Metabolism, 2024;26(Suppl 4):16–27. DOI
  12. MHRA. GLP-1 medicines for weight loss and diabetes: what you need to know. GOV.UK, updated 5 February 2026. Link
  13. NHS South West London Integrated Care Board. Tirzepatide (Mounjaro) for weight management: patient information ("You will be contacted directly if you are eligible"; "do not contact your GP practice or book appointments about tirzepatide medication unless invited"). Updated 30 July 2026.
  14. Wilding JPH et al. Once-weekly semaglutide in adults with overweight or obesity (STEP 1). NEJM, 2021;384:989–1002. 1,961 adults without diabetes, 68 weeks. DOI
  15. Novo Nordisk. Wegovy (semaglutide) US prescribing information, revised June 2026. Sections 1, 2.2, 5.2, 5.3, 5.5, 8.3, 17. (US label.) PDF

Last checked 12 Oct 2026 · Next review due Jan 2027

How this page was made. Written by the GLP Guidebook team from the sources above: drug labels, published trials, NICE guidance, and official NHS and MHRA pages. It's general information, not medical advice. Talk to a GP or another qualified prescriber before starting, stopping or changing any medicine. How we write