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
Free tracker included with every download this week
Mounjaro 10mg Prices in the UK
Mounjaro 10mg is the escalation dose of this prescription-only tirzepatide injection, typically reached after 12–16 weeks of treatment. Pricing varies significantly depending on whether you access it through the NHS or private prescription routes. This guide explains UK costs, eligibility criteria, and how the 10mg dose fits into the overall treatment plan.
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 Access and Pricing for Mounjaro 10mg
In the UK, Mounjaro is available through NHS specialist tier 3 weight management services, though cost and availability vary significantly by region. NICE (National Institute for Health and Care Excellence) has approved tirzepatide for NHS use, but prescribing is limited to specialist centres, not GP surgeries.
- NHS prescriptions are free at point of use (standard prescription charge)
- Access typically requires GP referral to your regional weight management service
- Many NHS areas have long waiting lists — sometimes 6–12+ months
- The 10mg KwikPen dose is administered once weekly
- MHRA status: tirzepatide carries Black Triangle (▼) additional monitoring designation
Your GP can refer you to the tier 3 service in your area, but they cannot prescribe Mounjaro directly. Eligibility is assessed by the specialist team based on BMI and weight-related health conditions.
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 Prescription Pricing and Access
Private prescriptions for Mounjaro 10mg are available through GPhC-registered online pharmacies following a clinical assessment by a UK-licensed prescriber. Private costs typically range from £179–£250 per KwikPen (4-week supply), depending on the pharmacy and dose.
- No NHS waiting list — access within days of assessment
- 10mg is usually prescribed after 8+ weeks of lower doses
- Each KwikPen contains 4 weeks of injections at the same dose
- Prescriber assessment is required before dispensing — not automatic
Use our free GLP-1 weight loss calculator to estimate potential results at the 10mg dose. Your BMI can be checked using our BMI calculator to see if you meet standard eligibility criteria (BMI 30+, or 27+ with weight-related conditions).
- 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 on the NHS in the UK?
Yes, NICE has approved tirzepatide (Mounjaro) for NHS use through specialist tier 3 weight management services. However, it is not available through GPs — you need a referral and assessment by a specialist centre. Availability and waiting times vary by region.
How much does Mounjaro 10mg cost privately in the UK?
Private costs typically range from £179–£250 per KwikPen (4-week supply) at the 10mg dose. Pricing varies between pharmacies and may depend on assessment fees. Check directly with GPhC-registered providers for current rates.
Why is 10mg the escalation dose for Mounjaro?
The standard dose escalation protocol starts at 2.5mg and increases every 4 weeks to 5mg, 7.5mg, 10mg, 12.5mg, and finally 15mg. The 10mg dose is typically reached around week 12–16. Doses are adjusted based on tolerance and response.
How do I access Mounjaro through the NHS?
Ask your GP for a referral to your regional tier 3 weight management service. You will be assessed against eligibility criteria (BMI 30+ or 27+ with weight-related conditions). NHS access is free, but waiting times can be significant — ask your GP about timescales in your area.
Can I switch from NHS to private Mounjaro prescription?
Yes. If NHS waiting times are too long, you can pursue a private prescription independently. There is no formal requirement to stay on NHS prescribing. A private prescriber will conduct their own assessment and may prescribe at any dose level based on your clinical needs.
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.