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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How Much Does Mounjaro 7.5mg Cost in the UK?
Mounjaro (tirzepatide) 7.5mg is available in the UK through both NHS specialist weight management services and private online pharmacies, with costs varying significantly depending on where you access it. The 7.5mg dose is typically the second escalation dose in the Mounjaro titration schedule, reached after at least 8 weeks on lower doses. Understanding pricing and access options can help you make an informed decision about whether Mounjaro is affordable and right for you. This guide explains UK costs, where to find the cheapest options, and what affects the price you'll pay.
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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 7.5mg Pricing in the UK — What You'll Pay
Private online pharmacy pricing for Mounjaro 7.5mg in the UK typically ranges from £180 to £280 per month, depending on the provider and whether you're on a subscription or one-off purchase. Each KwikPen contains 4 doses (4 weeks' supply), so monthly costs reflect this. Some private pharmacies offer discounts for multi-month bundles or subscription models, which can reduce the per-dose cost significantly.
NHS access to Mounjaro is free once prescribed through a specialist tier 3 weight management service, but access varies dramatically by region. Some NHS ICBs (integrated care boards) have approved Mounjaro funding following NICE guidance; others have waiting lists of 12–24 months or no current access. Your GP can refer you to your local specialist weight management service to check eligibility and availability in your area. The 7.5mg dose requires a clinical assessment confirming you've tolerated lower doses without significant side effects.
- Private cost: approximately £180–£280 per month for 7.5mg
- NHS cost: free (where available through specialist services)
- Subscription discounts: often 10–20% reduction on multi-month orders
- Timing: You reach 7.5mg after 8+ weeks on lower doses (2.5mg, 5mg)
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.
Finding the Cheapest Mounjaro 7.5mg — Key Factors
The cheapest way to access Mounjaro 7.5mg depends on your circumstances. If you qualify for NHS specialist weight management services and your local ICB funds Mounjaro, NHS access is free — making it the most cost-effective long-term option. If NHS access isn't available in your area or you're unwilling to wait for a referral appointment, private online pharmacies offer faster access but at a cost.
To find the cheapest private option, compare multiple GPhC-registered online pharmacies, as prices vary by £50–£100 per month. Check whether they offer subscription discounts or multi-month savings. Always verify the pharmacy is GPhC-registered (check the GPhC register online) and that a UK-licensed prescriber will assess you before issuing a prescription. Avoid suspiciously cheap offers — these may indicate unregistered or unsafe providers. Remember, Mounjaro at any dose requires a valid prescription following a clinical assessment of your BMI, health conditions, and medication interactions.
- 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 7.5mg cheaper on the NHS or privately in the UK?
Mounjaro is free on the NHS if prescribed through a specialist weight management service, but NHS availability and waiting times vary by region (sometimes 12–24 months). Private online pharmacies charge £180–£280 per month for 7.5mg. NHS is cheaper long-term if available; private is faster but costlier.
What does Mounjaro 7.5mg cost at different UK pharmacies?
Private pharmacy costs range from approximately £180 to £280 per month depending on the provider. Some offer subscription discounts of 10–20% for multi-month orders. Always check that the pharmacy is GPhC-registered and that a licensed UK prescriber will assess you before issuing a prescription.
Can I get Mounjaro 7.5mg cheaper by switching from a lower dose?
You can't skip doses — Mounjaro requires dose titration (starting at 2.5mg, increasing every 4 weeks). Once you reach 7.5mg, the cost is the same whether you switch providers or continue with your current one. However, switching to a cheaper provider when escalating may reduce overall costs.
Why is Mounjaro 7.5mg expensive in the UK compared to other countries?
UK private pharmacy pricing reflects pharmacy margins, clinical assessment costs, and MHRA regulatory oversight. Mounjaro is typically more expensive than some GLP-1 alternatives like Wegovy in private settings, but this varies by provider and dose escalation timing. Use our GLP-1 weight loss calculator to compare projected costs across different medications.
What's included in the Mounjaro 7.5mg price — is there an additional prescription fee?
Private pharmacy prices typically include the prescription fee from the licensed prescriber and the medication supply. Check individual pharmacy terms — some bundle both costs, others charge separately. NHS prescriptions are free once you're in the specialist weight management pathway. Always confirm 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.