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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10mg Mounjaro in the UK — NHS Eligibility & Dosing
The 10mg dose is a mid-range escalation dose of Mounjaro (tirzepatide) — a prescription-only weight management injection licensed in the UK. Whether accessed through NHS specialist services or private prescribing, the 10mg dose represents a significant step in the titration schedule. This guide explains NHS eligibility criteria, how the 10mg dose fits into the dosing pathway, and what you need to know about accessing this medication in the UK. Use our free GLP-1 weight loss calculator to estimate potential weight loss outcomes at different doses, or our BMI calculator to check your personal eligibility starting point.
10,000+ calculations today · NHS-aligned thresholds · 100% free
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 Eligibility & The 10mg Dose in UK Practice
In the UK, Mounjaro is approved by NICE for adults with a BMI of 30 or above, or BMI of 27–29.9 with at least one weight-related health condition such as type 2 diabetes, prediabetes, high blood pressure, or sleep apnoea. For South Asian, Chinese, Black African, and Black Caribbean adults, the NHS recommends lower BMI thresholds (starting at BMI 27.5 or above) due to higher cardiovascular risk at lower weights.
The 10mg dose is typically reached after 12 weeks of dose escalation, following the standard titration: 2.5mg weeks 1–4, 5mg weeks 5–8, 7.5mg weeks 9–12, then 10mg week 13 onwards. NHS access requires referral to a tier 3 specialist weight management service through your GP — availability varies significantly by region. Private prescribing allows faster access to the 10mg dose following an online clinical assessment with a UK-licensed prescriber. Clinical trials showed the 10mg dose helped participants lose approximately 19.5% of their body weight on average, though individual results vary considerably. Always use the weight converter to track your progress in the units that work best for you.
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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.
NHS vs Private Access to 10mg Mounjaro
Through the NHS route, the 10mg dose is prescribed by specialist weight management services after assessment and titration. Waiting times vary widely depending on your local integrated care board (ICB) — some regions have waiting lists of several months. Once on the medication, NHS prescription charges apply at the standard rate.
Through private prescribing, you can access the 10mg dose more quickly without NHS referral. A registered UK prescriber assesses your eligibility based on BMI and health history via an online consultation, and the medication is dispensed by a GPhC-registered pharmacy. This route bypasses NHS waiting lists but involves private costs (typically £160–£250 per month depending on provider and KwikPen quantity). Both routes require a valid prescription and an assessment to confirm the medication is clinically appropriate for you. Our progress tracker helps you log weight changes and monitor your individual response once treatment begins.
- 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.
How long does it take to reach the 10mg Mounjaro dose?
Following the standard titration schedule, it takes approximately 12 weeks (3 months) to reach 10mg: 2.5mg weeks 1–4, 5mg weeks 5–8, 7.5mg weeks 9–12, then 10mg from week 13 onwards. Each dose is a once-weekly injection, with minimum 4 weeks on each dose before increasing. Your prescriber may adjust this timeline based on your individual response and side effects.
Is the 10mg Mounjaro dose available on the NHS?
Yes, the 10mg dose is available through NHS tier 3 specialist weight management services for eligible adults. You'll need to be referred by your GP and assessed by the specialist service. However, availability varies significantly by region — some areas have substantial waiting lists. Private prescribing offers faster access without NHS referral.
How does 10mg Mounjaro compare to the maximum 15mg dose?
Clinical trials showed the 10mg dose produced approximately 19.5% average body weight loss, while the 15mg dose (maximum) showed approximately 20.9% average weight loss. The difference is modest — individual results vary greatly regardless of dose. Your prescriber will recommend the dose most appropriate for your response and tolerance.
What weight loss can I expect at 10mg Mounjaro?
In clinical trials, the 10mg dose supported an average weight loss of approximately 19.5% of body weight over 72 weeks, alongside a reduced-calorie diet and increased physical activity. However, individual results vary significantly — some people lose more, some less. Your personal result depends on adherence to lifestyle changes, your metabolism, and how your body responds to the medication.
Can I switch between NHS and private prescribing at 10mg?
This depends on your individual circumstances and the policies of your NHS service. Switching between routes should only be managed by your current prescriber — abrupt stopping and switching can affect your treatment continuity. Discuss any change in access route with your GP or specialist service first.
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.