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 7.5mg in the UK — Cost and Access Guide
Mounjaro 7.5mg is a dose level in the tirzepatide weight management pathway, typically used after dose escalation from lower strengths. The cost and access route depends on whether you pursue NHS specialist services or private prescription through a UK-licensed online provider. This guide explains both routes, typical costs, and what to expect from the assessment process.
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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.
Private Cost and Access in the UK
Private prescription cost for Mounjaro 7.5mg: Typically £200–280 per month through UK-registered online pharmacies, depending on the provider and whether you're on a subscription plan. Each KwikPen contains four weekly doses (one month supply).
- Initial consultation fee: Usually £50–99 (sometimes waived if you proceed with prescription)
- Prescription fee: Included in the medication cost or charged separately (typically £15–25)
- Subscription discounts: Many providers offer 10–15% off for monthly subscriptions
- No pharmacy markup required — GPhC-regulated providers set transparent pricing
The 7.5mg dose sits mid-range in the tirzepatide titration schedule. You reach it after approximately 9–12 weeks from your starting 2.5mg dose, following the standard four-week escalation protocol. Online assessment is streamlined — typically a 10–15 minute video or questionnaire consultation with a UK-licensed prescriber who reviews your weight, BMI, medical history, and current medications.
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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 Routes — What's Available Now
NHS route: Mounjaro is NICE-approved for specialist weight management services (tier 3/4), but access is limited. You need GP referral to your local integrated care board's weight management service. Waiting lists vary significantly by region—some areas have waits of 6–18 months. Once approved, Mounjaro is dispensed free through the NHS at any dose level, including 7.5mg.
Private route: Available immediately through online consultation without NHS referral. No waiting list. Prescription issued within 24–48 hours if clinically suitable. Dispensed by GPhC-registered pharmacies. You pay per dose throughout treatment. Use our GLP-1 weight loss calculator to estimate potential outcomes at 7.5mg and compare projected results with other doses.
The online assessment process is straightforward: complete a health questionnaire, have a brief video call or phone consultation with a UK-licensed prescriber, and if approved, receive your prescription within hours. Payment is secure and prescription verified before dispatch. Most providers offer discreet delivery to your home address within 1–3 working days. If you're considering Mounjaro as part of broader weight management, our BMI calculator helps establish your starting point and track progress against NHS healthy weight ranges.
- 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 available on the NHS for weight loss?
Yes, Mounjaro (tirzepatide) is NICE-approved for NHS specialist weight management services. However, access is through tier 3/4 services by GP referral only, and availability and waiting times vary significantly by region (some areas have waits exceeding 12 months). If you're eligible, you receive it free at any dose, including 7.5mg.
What does Mounjaro 7.5mg cost privately in the UK per month?
Private Mounjaro 7.5mg costs typically £200–280 per month through UK-registered online pharmacies. Each KwikPen contains four weeks of doses. Subscription plans often offer 10–15% discounts. Initial online consultation fees range from £50–99, sometimes waived if you proceed with treatment.
How do I access Mounjaro 7.5mg privately without the NHS waiting list?
Register with a GPhC-regulated online weight loss service, complete a health questionnaire and brief prescriber consultation, and if approved, receive your prescription within 24–48 hours. The prescription is dispensed by a registered UK pharmacy and delivered to your home. No NHS referral or GP involvement is required.
When do I reach the 7.5mg dose, and what's the cost difference between doses?
You typically reach 7.5mg after approximately 9–12 weeks, starting from 2.5mg and escalating every four weeks (2.5 → 5 → 7.5 → 10 → 12.5 → 15mg maximum). Private costs are typically similar across all dose levels (£200–280/month), though some providers charge slightly less for lower maintenance doses.
Is Mounjaro 7.5mg the same as Wegovy, and do they cost the same?
No. Mounjaro (tirzepatide) and Wegovy (semaglutide) are different medications with different mechanisms. Mounjaro is a dual GIP+GLP-1 agonist; Wegovy is GLP-1 only. 7.5mg Mounjaro is roughly equivalent to Wegovy's 1.7mg dose. UK private costs are typically similar (£200–280/month), but specific pricing varies by provider. ```
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