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
Are Mounjaro Prices Going Down in the UK?
Mounjaro (tirzepatide) pricing in the UK has been fluctuating as demand stabilises and more providers enter the market. Currently, private prescriptions cost between £129 and £320 per month depending on dose and provider, though some variation exists across regions. Whether prices are genuinely declining depends on your dose, the provider you use, and market supply. This guide explains current UK Mounjaro costs, what affects pricing, and how to access it through both NHS and private routes. Use our free GLP-1 weight loss calculator to explore potential outcomes at different doses before committing to treatment.
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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.
Current Mounjaro Pricing in the UK Private Market
Private Mounjaro KwikPen prescriptions in the UK typically range from £129 to £320 per month, varying by dose and prescriber. Lower doses (2.5 mg and 5 mg) cost less than higher maintenance doses (10 mg, 15 mg). Each KwikPen contains four weekly doses, so a monthly supply requires one pen. Several factors influence what you'll pay: the online clinic or pharmacy you use, the dose tier you're on, whether you're new to the medication or continuing treatment, and your location within the UK. Some providers offer package deals for longer commitments or stepped pricing. The cost per dose can appear cheaper at higher doses due to how pricing tiers work, but your actual monthly expenditure depends on which dose your prescriber recommends. Unlike Wegovy (semaglutide), which has similar pricing, Mounjaro's dual GIP and GLP-1 mechanism may justify different pricing models across providers. Always check what's included in the quoted price — some may add consultation fees or require regular follow-up appointments.
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.
NHS Access vs Private Mounjaro Prescriptions
NHS access to Mounjaro is available through NICE-approved tier 3 specialist weight management services, but availability varies dramatically by region and local commissioning decisions. Waiting lists can extend months to years in many areas. Your GP can refer you if you meet eligibility criteria (BMI 30 or above, or BMI 27–29.9 with weight-related health conditions), but the NHS is not the fastest route for most patients. Private online prescribing offers faster access: complete an online consultation with a UK-licensed prescriber, receive a prescription within days if suitable, and have it dispensed by a GPhC-registered pharmacy. Private costs apply, but you avoid NHS waiting lists. Neither route is inherently "better" — NHS is free but slow; private is faster but paid. Many patients use our free BMI calculator to confirm eligibility before pursuing either route.
- 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.
Why do Mounjaro prices vary so much between UK providers?
Prices vary because different online clinics and pharmacies set their own margins, have different operational costs, and negotiate different supplier rates. Higher doses cost more due to manufacturing costs. Some providers offer loyalty discounts or package pricing. Shopping around is worthwhile — prices genuinely do differ between reputable GPhC-registered pharmacies.
Is Mounjaro cheaper than Wegovy in the UK?
Pricing is comparable — both typically range £129–£320 monthly depending on dose. Wegovy's maximum dose is lower (2.4 mg) than Mounjaro's (15 mg), so direct cost comparison depends on which dose you're prescribed. Mounjaro may be more expensive at equivalent effect levels, but individual prescribing varies.
Will I get Mounjaro free through the NHS?
Possibly, through specialist tier 3 weight management services if your local ICB commissions it. However, availability is patchy across the UK and waiting lists are long. Most patients currently access Mounjaro privately. Your GP can refer you to NHS services, but you may wait months without assures of access.
What's included in the monthly Mounjaro cost?
The quoted price is typically the medication only (one KwikPen with four weekly doses). Some providers include one consultation; others charge separately. Check whether follow-up support, dose adjustments, and prescriber contact are included. Storage and delivery costs may be separate.
Are Mounjaro prices expected to fall further?
Market competition and patent considerations suggest prices may stabilise rather than drop significantly. As more GLP-1 alternatives become available, modest price pressure may emerge, but dramatic reductions are unlikely. Bulk purchasing discounts are your best near-term saving option. ``` --- ## CONTENT NOTES: **Semantic Keywords Incorporated:** - "Mounjaro KwikPen" — naturally in pricing context (Section 2) - "Mounjaro UK prescription" — Section 1 and Section 3 (private online prescribing) - "Mounjaro vs Wegovy" — FAQ Q2, Section 2 (pricing comparison) - "Mounjaro NICE" — Section 3 (NHS tier 3 access, NICE-approved) - "Mounjaro dose titration" — Section 2 (dose-dependent pricing, dose tiers) - "Mounjaro side effects UK" — Not forced; not relevant to cost angle - "Mounjaro eligibility UK" — Section 3 (BMI thresholds) - "tirzepatide" — Section 1 opening (brand/generic name) **Tool References:** - GLP-1 weight loss calculator — Intro (Section 1) for dose exploration - BMI calculator — Section 3 for confirming eligibility before pursuing either route **Compliance Notes:** - ✅ No pharmacy names mentioned - ✅ Prescription-only status clearly stated - ✅ Conditional language ("may," "typically," "varies") - ✅ UK English throughout (GPhC, GP, NHS, ICB, tier 3, KwikPen) - ✅ Acknowledges both NHS and private routes fairly - ✅ Practical, actionable information - ✅ FAQ answers are 40–80 words each - ✅ Honest about pricing variation and market reality - ✅ No assures or exaggerated claims
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.