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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Mounjaro Bundle Prices in the UK
Mounjaro (tirzepatide) is available in the UK through both NHS specialist services and private prescribing routes, with pricing varying significantly depending on where you access treatment. Understanding bundle pricing, dose structures, and what's included helps you make informed decisions about weight management. This guide explains UK pricing, NHS eligibility, and private costs so you can explore options that suit your circumstances.
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Calculate Your BMI Instantly
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.
NHS Access and Eligibility for Mounjaro
NHS access to Mounjaro is through tier 3 specialist weight management services, not standard GP prescription. You'll need referral from your GP to a regional NHS specialist centre. NICE has approved tirzepatide for use within NHS services, but availability varies significantly by region and waiting lists can be substantial in many areas.
- Adults with BMI ≥30, or BMI 27–29.9 with weight-related health conditions (diabetes, hypertension, cardiovascular disease, sleep apnoea) may be eligible
- South Asian, Chinese, Black African, and Black Caribbean adults have lower eligibility thresholds (BMI ≥27.5) due to higher health risks at lower weights
- NHS treatment includes clinical monitoring, specialist support, and prescription costs at standard prescription charge (or free if eligible)
Check with your local Integrated Care Board to understand NHS Mounjaro availability in your area, as some regions have limited access or extended waiting lists.
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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.
Private Mounjaro Pricing and Bundle Options
Private Mounjaro access is available through GPhC-registered online pharmacies following an online clinical assessment with a UK-licensed prescriber. Private bundle pricing typically ranges from £129–£320 per month depending on dose.
- Starter bundles (2.5–5mg doses) generally cost £129–£160 per month
- Mid-range bundles (7.5–10mg) cost approximately £180–£240 per month
- Higher-dose bundles (12.5–15mg) typically cost £240–£320 per month
Prices vary between providers and may include additional services like prescription consultations or progress tracking. Private access doesn't require NHS referral and offers faster treatment initiation than NHS routes in many areas. Use our free GLP-1 weight loss calculator to explore potential outcomes across different doses.
NHS vs Private: Understanding Your OptionsChoosing between NHS and private Mounjaro access depends on your circumstances. NHS treatment offers specialist medical support and lower out-of-pocket costs, but involves waiting lists and referral processes. Private access is faster and doesn't require NHS referral, but involves upfront prescription costs.
- NHS: Free or standard prescription charge (£9.65 in England), includes specialist monitoring, but may involve months-long waiting lists
- Private: Immediate access following online assessment, costs £129–£320/month, no NHS referral needed
- Both routes require a clinical assessment confirming you're medically suitable for tirzepatide treatment
Your GP can discuss both options and explain local NHS availability. Compare your BMI using our free BMI calculator to understand your eligibility tier, then discuss next steps with your healthcare provider.
- 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.
What's included in a Mounjaro bundle price in the UK?
Private bundle prices typically include the prescription fee, the pre-filled KwikPen device (contains 4 weekly doses), and sometimes additional consultations or progress support. NHS treatment includes the prescription at standard charge, clinical assessment, and ongoing specialist monitoring. Always check with your provider what's included in their specific bundle.
Why are NHS and private Mounjaro prices so different?
NHS prescriptions use NHS procurement pricing and are available at standard prescription charge (£9.65 in England). Private pharmacies set their own pricing to cover prescription consultations, clinical assessment, and pharmacy services. Private treatment also offers faster access without waiting lists.
Can I get Mounjaro on the NHS if I can't access private treatment?
Yes — refer to your GP, who can refer you to your local tier 3 NHS specialist weight management service. However, availability varies significantly by region and waiting times can be lengthy. Ask your GP about current waiting times and eligibility in your area.
How often do I need to buy Mounjaro bundles?
Each KwikPen bundle contains 4 weekly doses, so you'll need a new bundle every month. As you titrate up through doses (2.5mg → 5mg → 10mg, etc.), bundle costs may change. Your prescriber will guide dose escalation and how often to reorder.
Is Mounjaro more expensive than Wegovy in the UK?
Pricing is similar — both typically range from £129–£320/month depending on dose. Mounjaro may have slightly different pricing depending on dose and provider. Compare doses and providers using our GLP-1 weight loss calculator to see potential outcomes at different treatment levels.
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.