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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Tirzepatide 10mg Cost and Access in the UK
Tirzepatide 10mg is the escalation dose of Mounjaro, a prescription-only weight loss injection licensed in the UK. Access and cost vary significantly depending on whether you use the NHS or pursue private prescription. This guide explains both routes, pricing context, and what to expect when obtaining tirzepatide. Whether you're exploring weight management options or ready to start treatment, understanding your access choices helps you make an informed decision about your health.
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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.
Cost of Tirzepatide 10mg in Private Practice
Tirzepatide is available privately in the UK through online prescription services and private weight management clinics. At the 10mg dose, monthly costs typically range from £180 to £280 depending on the provider and whether you're continuing from a lower dose or starting at escalation.
Each KwikPen contains 4 doses (a 4-week supply), and costs are usually charged per pen rather than per individual injection. When you reach the 10mg dose, you're typically at week 13 or beyond, meaning your prescriber has already assessed your suitability and tolerability at lower doses.
- Typical 10mg monthly cost: £180–£280 private prescription
- Includes online consultation, prescription, and pharmacy dispensing
- No NHS subsidy at private tier — full cost to patient
- Some providers offer payment plans or subscription discounts
- Costs do not include GP follow-up or blood tests if needed
Use our GLP-1 weight loss calculator to estimate potential outcomes at the 10mg dose, which can help inform your decision about whether this investment aligns with your goals.
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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.
NHS vs Private Access — Which Route Is Right for You?
NHS route: Tirzepatide (Mounjaro) is available through NHS tier 3 specialist weight management services following referral from your GP. However, NHS availability is limited and varies by region — waiting lists can be 12–24 months or longer in many areas. Once approved, medication is free at the point of use.
Private route: Faster access through online consultations with UK-licensed prescribers. You can typically receive a prescription within 1–7 days if you meet eligibility criteria. The private route requires you to pay upfront, but offers immediate access without NHS waiting lists.
- NHS: free but often long waits; requires GP referral and specialist assessment
- Private: paid but rapid access; online consultation with licensed prescriber
- Both require clinical assessment — not available without consultation
- Use our BMI calculator to check if you meet the threshold eligibility (BMI 30+ or 27+ with health 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.
How much does tirzepatide 10mg cost per month in the UK?
Private prescription costs for tirzepatide 10mg typically range from £180 to £280 per month, depending on the provider. This covers the KwikPen (4 weeks of injections), the online consultation or prescription fee, and pharmacy dispensing. NHS access is free but often involves significant waiting times. Prices vary, so it's worth comparing providers.
Can I get tirzepatide 10mg on the NHS in the UK?
Yes, tirzepatide (Mounjaro) is available through NHS specialist tier 3 weight management services. However, access is limited and availability varies by region. You need a GP referral and typically wait months to be assessed. Once approved, it's free. Private access is faster but costs £180–£280 monthly.
What's the difference between Mounjaro and tirzepatide?
Mounjaro is the brand name for tirzepatide, a dual GIP and GLP-1 receptor agonist injection. Tirzepatide is the active ingredient. When prescribed, your doctor may use either term — they mean the same medication. At 10mg, you're at an intermediate escalation dose, typically reached after 8–12 weeks of treatment at lower doses.
How is tirzepatide prescribed privately in the UK?
Through an online consultation with a UK-licensed prescriber. You complete a medical questionnaire, the prescriber assesses your suitability, and if approved, they issue a prescription to a GPhC-registered pharmacy. The pharmacy dispenses the medication and ships it to your address. The whole process typically takes 1–7 days.
Do I need regular GP check-ups while taking tirzepatide 10mg?
Private prescribers typically recommend follow-up consultations every 4–6 weeks, especially during dose escalation. Many private providers include these in their service. Your GP may want to monitor you — inform them you're taking tirzepatide. Blood tests and cardiovascular assessments may be recommended, particularly if you have diabetes or health conditions.
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.