The UK's most complete GLP-1 guide
Every Question Answered. Every Side Effect Explained.
- How GLP-1 medications work
- Mounjaro vs Wegovy compared
- Injection instructions
- Side effects & solutions
- What to eat on treatment
- FAQs answered
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Best Weight Loss Pills for Menopause in the UK
Weight changes during menopause are common and can be frustrating, but prescription weight loss pills may help. Several evidence-based medication options are available in the UK, including GLP-1 receptor agonists like Wegovy and Mounjaro, which can support weight management alongside lifestyle changes. This guide explains your options, how these medications work, NHS access, and what to expect. Always consult your GP to discuss whether prescription weight loss medication is appropriate for your individual health needs during this life stage.
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Enter your height and weight below. Supports both imperial (stone & lbs) and metric (kg). Results include NHS category, healthy weight range, and ethnicity adjustments.
What Is BMI and Why Does It Matter?
Body Mass Index (BMI) is the most widely used screening tool for assessing whether your weight falls within a healthy range. Used by the NHS, GPs, and weight management services across the UK, BMI provides a quick snapshot of your weight relative to your height. The formula is simple: your weight in kilograms divided by your height in metres squared (kg/m²).
While BMI isn't a perfect measure — it doesn't account for muscle mass, bone density, or fat distribution — it remains the standard first step in identifying potential weight-related health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.
The NHS also recommends adjusted thresholds for people of South Asian, Chinese, or Black African heritage — a BMI of 23 or above is classified as overweight, and 27.5 as obese. Our calculator includes this adjustment as a one-click toggle.
Prescription Weight Loss Options Available in the UK
Two main prescription medications are currently licensed in the UK for weight management and may be suitable during menopause:
- Wegovy (semaglutide) — a once-weekly GLP-1 receptor agonist injection. In clinical trials, it helped adults lose an average of approximately 15% of their body weight over 68 weeks, alongside a reduced-calorie diet and increased physical activity.
- Mounjaro (tirzepatide) — a once-weekly dual GIP and GLP-1 receptor agonist injection. Clinical trials showed average weight loss of 15–21% of body weight, though individual results vary significantly.
- Saxenda (liraglutide) — a daily GLP-1 injection, with average weight loss of around 5–10% of body weight.
All are prescription-only medicines requiring clinical assessment. A prescriber will evaluate your health, menopause symptoms, and any weight-related conditions before prescribing. Some women find these medications particularly helpful during menopause when metabolism changes make weight management more challenging.
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How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
Use our progress tracker to log your weight weekly, visualise your journey with charts, and stay motivated — all stored privately in your browser.
Free Weight Loss Tools & Guides
Everything you need to understand your weight, explore medication options, and track your progress — completely free.
Eligibility and How to Access Weight Loss Medication
In the UK, you may be eligible for prescription weight loss medication if you have a BMI of 30 kg/m² or above, or 27–29.9 with weight-related health conditions like type 2 diabetes, high blood pressure, or heart disease—conditions more common in menopausal women.
NHS access: Referral to a specialist tier 3 weight management service through your GP. Availability varies by region and waiting times can be lengthy.
Private access: Online consultation with a UK-licensed prescriber, typically faster but involves a cost (usually £129–£320 monthly depending on dose). Use our free BMI calculator to check your starting point, and our GLP-1 weight loss calculator to explore potential outcomes at different doses.
- Dual GIP/GLP-1 receptor agonist
- Up to 22.5% body weight loss (SURMOUNT-1)
- Weekly injection, dose escalation over 20+ weeks
- Available via private prescription in the UK
- Doses: 2.5mg → 5mg → 7.5mg → 10mg → 12.5mg → 15mg
- GLP-1 receptor agonist
- Up to 15–17% body weight loss (STEP trials)
- Weekly injection, 5-step dose escalation
- NHS & private prescription available
- Doses: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg
Mounjaro vs Wegovy: Head-to-Head
A side-by-side comparison of the two most popular GLP-1 weight loss medications available in the UK.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, vomiting, diarrhoea |
Data sourced from SURMOUNT-1 and STEP 1 clinical trials. Costs are approximate and vary by provider. Always consult a prescriber.
Am I Eligible for Weight Loss Medication?
In the UK, eligibility for GLP-1 weight loss medications like Mounjaro and Wegovy is based on your BMI and overall health profile.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- BMI of 27 or above
- Plus type 2 diabetes
- Or high blood pressure
- Or obstructive sleep apnoea
Use our BMI calculator to check whether your BMI falls within the eligible range.
How We Built These Tools
Every calculator and guide on myweightcheck is built with accuracy and transparency in mind. Our BMI calculator uses the standard WHO formula with NHS-aligned category thresholds. Our GLP-1 projections are modelled on published clinical trial data from SURMOUNT and STEP studies.
All data stays on your device. We don't require sign-ups, and we don't store your health information on any server. Your progress tracker saves data locally in your browser using localStorage, so only you can see it.
We're based in the UK and our tools are designed specifically for UK users — supporting stone & lbs by default, referencing NHS guidelines, using NICE-approved medication data, and linking to GPhC-registered pharmacies.
Frequently Asked Questions
Common questions about BMI, weight loss medications, and our free UK tools.
Why is weight loss harder during menopause?
Menopause causes hormonal changes that lower oestrogen and progesterone, which affects metabolism, appetite regulation, and fat distribution. Muscle mass naturally declines with age, further reducing metabolic rate. GLP-1 medications may help by regulating appetite and supporting a calorie deficit, making weight management more achievable during this transition.
Are weight loss pills safe for menopausal women?
Prescription weight loss medications like Wegovy and Mounjaro have been clinically tested and are licensed for use in the UK. However, they are not suitable for all women—particularly those pregnant, breastfeeding, or with certain medical conditions. Your GP or prescriber will assess your individual health and menopause symptoms to ensure safety.
Can I take weight loss pills with HRT?
GLP-1 medications may affect how the stomach absorbs some oral medications, including certain HRT formulations. This requires discussion with your prescriber and GP together. Some HRT types may not be affected. Always inform both your GP and prescriber of all medications you're taking.
How quickly will I lose weight on these medications?
Weight loss is gradual and varies between individuals. Clinical trials showed average loss of 0.5–1 kg per week, though some people lose faster and others slower. Results depend on dose, individual metabolism, diet, and activity level. Our progress tracker can help you monitor changes over time.
What are the main side effects during menopause?
Common side effects include nausea, diarrhoea, constipation, and reduced appetite—which may overlap with menopause symptoms like hot flushes. Most side effects are mild and tend to reduce over time. Serious side effects are rare but include severe stomach pain or allergic reactions. Report any concerns to your GP. ```
Ready to take control of your weight loss journey?
Start with a free BMI check, explore your GLP-1 options, or begin tracking your progress today. No sign-up. No cost. Just results.