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 10 mg Price in the UK
Mounjaro (tirzepatide) 10 mg is a prescription-only weight loss injection available in the UK, but pricing depends on whether you access it through the NHS or privately. The cost varies significantly between routes, and eligibility also differs. Understanding both options helps you make an informed decision about accessing this medication. Our free GLP-1 weight loss calculator can help you estimate potential outcomes at different doses, while your GP or a licensed prescriber can assess whether Mounjaro is suitable for you based on your individual health needs.
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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, NICE Guidance, and UK Eligibility
NHS Access and Cost: If prescribed through the NHS, Mounjaro is provided free at point of care — you only pay standard prescription charges (£11.90 per item in England as of 2024). However, NHS access is strictly through tier 3 specialist weight management services, not routine GP prescriptions. You must be referred by your GP to a specialist service, and availability varies significantly by region. Many areas have long waiting lists — sometimes 12–18 months or longer.
NICE and MHRA Status: NICE (National Institute for Health and Care Excellence) has approved tirzepatide for use within NHS specialist weight management services. The medication carries a black triangle (▼) from the MHRA, indicating it requires additional monitoring but is licensed for UK use. Eligibility typically requires a BMI of 30 or above, or 27–29.9 with weight-related health conditions such as type 2 diabetes, high blood pressure, or cardiovascular disease.
Regional Variation: Not all ICBs (Integrated Care Boards) currently offer Mounjaro through NHS services — some regions focus on other GLP-1 medications like Saxenda or semaglutide. Contact your local weight management service to confirm availability.
Clinically BackedWeight Loss
No appointments. No waiting rooms. Just care — from a UK-regulated online pharmacy.
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 Route Pricing and Access
Private Cost Range: Private Mounjaro prescriptions typically cost £180–£320 per month depending on dose and the prescriber. The 10 mg dose falls mid-range in this pricing structure. Private access is through GPhC-registered online pharmacies or private weight management clinics following a remote clinical assessment with a UK-licensed prescriber.
Why Private Access Costs More: Private costs cover the clinician consultation, prescriber assessment, pharmacy dispensing, and admin — there is no NHS subsidy. Speed is a significant advantage: private prescriptions can be issued and dispensed within days, avoiding NHS waiting lists entirely.
What's Included: Most private providers include nurse support, dose adjustment guidance, and access to online tracking tools. Check whether your chosen provider offers support or supplies specialist sharps bins and injection training. Use our free progress tracker to log your weight loss journey regardless of which route you choose.
- 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.
Is Mounjaro 10mg free on the NHS?
Mounjaro is free on the NHS if prescribed through a tier 3 specialist weight management service — you only pay standard prescription charges (£11.90 in England). However, access is limited to specialist services with significant regional variation and waiting lists. Your GP can refer you, but availability depends on your local ICB.
How much does Mounjaro 10mg cost privately in the UK?
Private Mounjaro costs typically range from £200–£280 per month for a 10mg dose, depending on the provider and whether nurse support is included. Prices vary between online pharmacies and private clinics. Always check what's included in the cost before committing.
What's the difference between NHS and private Mounjaro access?
NHS access is free but involves waiting lists and tier 3 referral; private access is faster (days) but costs £200+/month. NHS availability varies by region. Both routes require clinical assessment. Private access doesn't require GP referral, making it an option if NHS waiting lists are prohibitively long.
How long does it take to get Mounjaro 10mg through the NHS?
NHS waiting times vary significantly by region, typically ranging from 3–18 months. Some areas have no current NHS provision for tirzepatide. Contact your local weight management service for specific timescales. Private prescriptions are usually issued and dispensed within 3–7 days.
Do I need a prescription to buy Mounjaro 10mg in the UK?
Yes, Mounjaro is prescription-only in the UK. You cannot buy it without a valid UK prescription from a licensed prescriber. This applies to both NHS and private routes. Always ensure any online provider is GPhC-registered and prescriptions come from a UK-licensed clinician.
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.