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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Mounjaro 10mg in Stock — UK Costs and Access Options
If you're searching for Mounjaro 10mg availability and pricing in the UK, you've likely been considering this prescription weight loss injection as part of your health journey. Mounjaro (tirzepatide) is a once-weekly injectable medication licensed for weight management in UK adults, but access and cost vary significantly depending on whether you pursue treatment through the NHS or privately. Understanding your options, eligibility criteria, and realistic costs will help you make an informed decision about whether this medication is right for you.
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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.
Private Mounjaro Costs and Prescription Routes
Private prescription pricing for Mounjaro in the UK ranges from approximately £129 to £320 per month, depending on your dose and the private provider. At the 10mg dose (typically reached after 12–16 weeks of dose titration), costs are generally in the mid-to-higher range of this spectrum. Each dose is supplied as a single KwikPen containing four weekly injections, so monthly costs reflect one pen at your current dose strength.
To access private Mounjaro, you'll complete an online consultation with a UK-licensed prescriber following a clinical assessment. The prescriber will review your medical history, current medications, weight, BMI, and any weight-related health conditions to determine eligibility. If approved, you'll receive a prescription that's dispensed by a GPhC-registered pharmacy and delivered to your home. This entire process typically takes 3–7 days from initial consultation to first delivery.
- 10mg dose is an escalation dose — you cannot start at 10mg; you must complete the dose titration schedule first
- Starting dose is 2.5mg, increasing by 2.5mg every 4 weeks until you reach your target maintenance dose
- Most people reach 10mg between weeks 13–16 of treatment
- Private providers often offer repeat prescription services, so future doses are easier to access
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: Which Route Is Right for You?
NHS access to Mounjaro (tirzepatide) is now available through tier 3 specialist weight management services following NICE approval, but availability is highly regional. You'll need a referral from your GP to a specialist weight management service, and waiting lists in many parts of the UK are currently 6–18 months or longer. If accepted onto an NHS programme, you would not pay the medication cost directly — it would be funded by your local integrated care board (ICB).
The private route is faster but requires out-of-pocket payment. Choose private prescription if you want treatment within days rather than months, and if you can afford the ongoing monthly costs. Choose NHS referral if you prefer free treatment and don't mind waiting, or if cost is a barrier. You can also request an NHS referral while exploring private options in parallel.
- Private = faster access, higher out-of-pocket cost, no waiting list
- NHS = free treatment, significant waiting time, availability varies by region
- 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.
Do I need to start at 10mg Mounjaro, or do I have to go through dose titration first?
You must complete dose titration — you cannot start at 10mg. The standard schedule begins at 2.5mg and increases by 2.5mg every 4 weeks (so week 1–4 is 2.5mg, weeks 5–8 is 5mg, weeks 9–12 is 7.5mg, weeks 13–16 is 10mg). This protects against side effects and allows your body to adjust. Reaching 10mg typically takes 12–16 weeks.
How much does a single 10mg Mounjaro KwikPen cost privately in the UK?
A single KwikPen of 10mg Mounjaro costs approximately £200–£320 privately, depending on your provider. This supplies four weekly injections (one month of treatment). Some providers offer discounts for prepayment or subscription services. Always confirm the exact price with your prescriber before starting treatment.
Can I get Mounjaro on the NHS without a waiting list?
NHS waiting lists for tier 3 weight management services are currently 6–18 months in most regions. NICE has approved tirzepatide (Mounjaro) for NHS use, but availability depends on your local ICB funding. Private prescription is the quickest route if you cannot wait. Ask your GP about your local waiting times and NHS eligibility first.
What happens after I've reached 10mg — do I stay on this dose or keep increasing?
The maximum dose of Mounjaro is 15mg. Once you're stable on 10mg and tolerating it well, your prescriber may keep you on this dose if it's effective. However, if your weight loss plateaus or you have fewer side effects, you could escalate to 12.5mg or 15mg. Some people stay on 10mg long-term — the decision depends on your individual response and your prescriber's assessment.
Is Mounjaro the same as Wegovy, and will I pay the same price?
No — Mounjaro (tirzepatide) and Wegovy (semaglutide) are different medications with different mechanisms. Mounjaro is a dual GIP and GLP-1 agonist; Wegovy is GLP-1 only. They have different dose schedules and may have different costs. Pricing varies by provider, but at equivalent weight loss doses, costs are generally similar (£200–£300/month). Your prescriber will advise which is appropriate for you.
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.