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
What Is the UK Price for Mounjaro 10mg?
Mounjaro 10mg is a prescription-only weight management injection in the UK, and its cost varies significantly depending on whether you access it through the NHS or private prescribing services. The 10mg dose is an escalation dose used after initial titration, typically reached around week 13 of treatment. Costs, eligibility criteria, and availability differ substantially between NHS specialist services and private online prescribers. Understanding both pathways can help you explore your options for accessing this tirzepatide medication.
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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.
Mounjaro 10mg Pricing in the UK
Private prescribing pricing: Mounjaro 10mg typically costs between £200–£280 per month through private online prescribing services in the UK, though exact prices vary by provider. This cost covers the prescription assessment, prescriber fee, and the medication itself (one KwikPen with four weeks' supply). Some providers offer package discounts if you commit to multiple months upfront.
- Private pricing includes the clinical assessment from a UK-licensed prescriber
- Costs are per dose — you pay per month of treatment
- At 10mg, you're on an escalation dose, so you may have already paid for 2.5mg, 5mg, and 7.5mg doses during titration
NHS pricing: If prescribed through NHS specialist weight management services, Mounjaro is provided free at the point of use, though NHS access is limited and varies by region. Waiting times for NHS tier 3 services can be months to years in many areas.
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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.
How Mounjaro Dosing and Cost Escalation Works
Mounjaro is not started at 10mg — treatment begins at 2.5mg and increases weekly over several months. Week 1–4: 2.5mg (starting dose), Week 5–8: 5mg, Week 9–12: 7.5mg, Week 13–16: 10mg. If you're accessing privately, you pay per injection dose, so reaching 10mg involves total costs from earlier doses. If cost is a concern, discuss this timeline with your prescriber — some people stabilise at lower doses. Use our GLP-1 weight loss calculator to estimate potential weight loss outcomes at the 10mg dose alongside lifestyle changes.
- 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 available on the NHS in the UK?
Yes, Mounjaro is approved by NICE for NHS prescribing through specialist tier 3 weight management services, but availability is limited and varies significantly by region. Some ICBs have extensive waiting lists; others have limited access. Your GP can refer you to your local specialist service if you meet eligibility criteria (BMI ≥30, or ≥27 with weight-related health conditions). NHS prescriptions are free.
What does private Mounjaro 10mg cost compared to other doses?
Private pricing is similar across all doses — typically £200–£280 per month per dose. So the total cost from starting treatment to reaching 10mg (including 2.5mg, 5mg, 7.5mg, and 10mg) would be approximately £800–£1,120 over four months of titration, plus ongoing 10mg doses if you continue.
Can I access Mounjaro 10mg without going through the NHS?
Yes. Private online prescribing services can assess your eligibility and issue a prescription for Mounjaro if clinically appropriate. You'll have a clinical assessment with a UK-licensed prescriber, who will determine whether Mounjaro is suitable for you. If approved, your prescription is dispensed by a GPhC-registered pharmacy.
How long does a Mounjaro 10mg pen last?
One Mounjaro KwikPen contains four injections of the same dose — so one 10mg pen provides exactly four weeks of treatment (one injection per week). You'll need to reorder a new pen every four weeks if continuing at 10mg.
Does Mounjaro 10mg price include the assessment and prescription?
Yes — private pricing (£200–£280/month) covers the prescriber assessment, prescription fee, and the medication itself. There are no hidden costs, though some providers offer discounts for upfront payment of multiple months. Always clarify what's included before purchasing.
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.