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
Is 7.5mg Mounjaro Strong — What You Need to Know
At 7.5mg, Mounjaro sits in the mid-range of available doses — stronger than the starting 2.5mg and 5mg doses, but not yet at maximum strength. Whether this dose is "strong" for you depends on your individual response, weight loss goals, and health context. In the UK, accessing Mounjaro involves either NHS specialist services or private prescription routes, each with different costs and timelines. Understanding dose strength, how Mounjaro works as a tirzepatide injection, and your access options 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.
Mounjaro 7.5mg — Dose Strength and Effectiveness
Mounjaro 7.5mg is an escalation dose in the standard titration schedule. The usual progression is: 2.5mg (weeks 1–4), then 5mg (weeks 5–8), then 7.5mg (weeks 9–12), with further increases to 10mg, 12.5mg, and the maximum 15mg possible. At 7.5mg, you're roughly halfway through the approved dose range.
In the SURMOUNT-1 clinical trial, participants on Mounjaro averaged approximately 15–clinically studied weight loss by week 72, with higher doses (10mg and 15mg) showing slightly greater average losses than lower doses. However, individual responses vary significantly — some people achieve substantial weight loss at 7.5mg, whilst others continue escalating to higher doses. The 7.5mg dose is often where people begin to feel more noticeable appetite reduction and satiety effects, making it an effective maintenance dose for many UK users. Whether it's "strong" depends on your personal goals and how your body responds. Use our GLP-1 weight loss calculator to estimate potential results at this dose.
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.
Accessing Mounjaro in the UK — NHS vs Private Cost
In the UK, there are two main routes to access Mounjaro: NHS specialist services or private prescription. The NHS route involves referral to a tier 3/4 specialist weight management service from your GP, but availability and waiting times vary dramatically by region — some areas have waiting lists extending many months. Private prescription involves an online consultation with a UK-licensed prescriber, typically costing £120–£200 for the appointment, followed by pharmacy costs ranging from approximately £150–£300 per month depending on your dose and the pharmacy. A single KwikPen contains 4 weeks of injections. Most private UK pharmacies offering Mounjaro require you to pay for both the consultation and the medication upfront. Always ensure the provider is GPhC-registered and the prescriber is UK-licensed before proceeding.
- 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 Mounjaro 7.5mg cost in the UK on private prescription?
Private prescription costs vary by pharmacy, but typically range from £150–£280 per month for the 7.5mg dose. Add approximately £120–£200 for the initial online clinical assessment. Some pharmacies offer discounted multi-month packages. Always check the total cost upfront, as prices differ between providers.
Can I get Mounjaro 7.5mg on the NHS in the UK?
Yes, Mounjaro is approved by NICE for use within NHS specialist weight management services (tier 3/4). However, access requires GP referral and assessment by a specialist service. Availability and waiting times vary significantly by region — some areas have long waiting lists. Contact your GP to ask if your local integrated care board (ICB) offers this service.
What's the difference between Mounjaro and Wegovy for cost and access?
Both are prescription-only weight loss injections available via NHS and private routes in the UK. Mounjaro (tirzepatide) is a dual GIP+GLP-1 agonist with doses up to 15mg weekly; Wegovy (semaglutide) is a GLP-1 agonist with doses up to 2.4mg weekly. Private costs are similar (£150–£300/month), but availability and prescriber criteria may differ. Your prescriber will assess which is more suitable for you.
Is 7.5mg Mounjaro enough, or do I need to go higher?
Whether 7.5mg is sufficient depends on your weight loss progress, side effects, and health goals. Most people spend 4 weeks at each dose before escalating. If you're achieving steady loss and tolerating the dose well, your prescriber may recommend staying at 7.5mg rather than increasing further. Individual response varies significantly — discuss your goals and progress with your healthcare provider.
How do I start the private prescription process for Mounjaro in the UK?
Find a GPhC-registered UK pharmacy offering online Mounjaro prescriptions. Complete an online health questionnaire, have a consultation (usually video) with a UK-licensed prescriber, and if approved, receive a prescription. The pharmacy then dispenses your KwikPen pens. The entire process typically takes 3–7 days from application to delivery.
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.