Mounjaro UK Introduction Guide: Everything You Need to Know
Mounjaro, a breakthrough treatment initially developed for type 2 diabetes, has rapidly gained attention in the UK for its dramatic weight loss potential. Whether you're exploring it for health reasons or weight management, this guide will walk you through everything you need to know before starting Mounjaro in the UK.

What is Mounjaro?
Mounjaro (tirzepatide) is a once-weekly injectable medication developed by Eli Lilly. Originally licensed to treat type 2 diabetes, it has shown remarkable weight loss results in clinical trials—often outperforming other well-known treatments like semaglutide (Wegovy or Ozempic).
The name “Mounjaro” comes from Mount Kilimanjaro, symbolising the towering impact it may have on metabolic health. In 2024, Mounjaro began becoming more widely discussed in the UK due to rising demand in both NHS and private healthcare settings.
How Does Mounjaro Work?
Mounjaro is a dual-action medication. It mimics two hormones: GLP-1 (glucagon-like peptide-1) and GIP (glucose-dependent insulinotropic polypeptide). Together, these hormones help:
Slow stomach emptying, leading to longer-lasting fullness
Suppress appetite and food cravings
Improve blood sugar control
Enhance insulin sensitivity
This dual mechanism sets Mounjaro apart from GLP-1-only drugs like semaglutide. Many UK users report stronger appetite suppression and faster weight loss with Mounjaro than with older treatments.
How Much Weight Can Be Lost per Week by Using Mounjaro (1–12 Weeks)?
Weight loss on Mounjaro varies depending on the dosage, individual biology, and lifestyle habits. However, average weekly weight loss estimates (based on clinical studies and UK user reports) are as follows:
Week Range | Estimated Average Weekly Weight Loss |
---|---|
Weeks 1–4 | 0.5–1.5 kg (1.1–3.3 lbs) per week |
Weeks 5–8 | 1.0–2.0 kg (2.2–4.4 lbs) per week |
Weeks 9–12 | 1.0–2.5 kg (2.2–5.5 lbs) per week |
Weeks 13+ | 1.0–2.5 kg (2.2–5.5 lbs) per week |
By the end of 12 weeks, some individuals may lose between 10%–15% of their starting weight, especially when combined with dietary changes and exercise.
Note: These numbers are averages. Individual results will vary.
How Much Does Mounjaro Cost in the UK?
The cost of Mounjaro in the UK varies based on the provider, dosage, and whether it’s accessed through the NHS or a private service. Here’s a summary of typical monthly prices for different dosage levels:
Source | Dosage (mg/week) | Approx. Monthly Cost (GBP) | Notes |
---|---|---|---|
NHS (diabetes only) | Any (as prescribed) | ~£9.95 (standard Rx fee) | Only available for type 2 diabetes patients |
Private - Simple Online Pharmacy | 2.5 mg – 15 mg | £159 – £299 | Pricing varies with dosage |
Private - The Online Clinic | 2.5 mg – 15 mg | £169 – £279 | Consultation included |
Private - Juniper | 2.5 mg – 15 mg | £209 – £299 | Includes coaching and dietary support |
Private - Superdrug Online Doctor | 2.5 mg – 10 mg | £149 – £249 | Known for customer service and easy ordering |
Private - Medicspot | 2.5 mg – 15 mg | £129 – £179 | One of the lowest private rates currently |
PrivateDoc | 2.5 mg (Month 1) | £209 (starter pack) | Prices rise in later months with dosage |
💡 Tips to Save on Mounjaro in the UK:
Start low: Begin with a lower dose (2.5 mg) to manage side effects and costs.
Compare regularly: Prices change — some providers offer flash discounts.
Ask about bundles: Some pharmacies provide 3-month supply deals.
Track expenses: If medically necessary, some may claim costs via private health insurance.
Where to Get Mounjaro in the UK
Currently, there are two primary routes to obtain Mounjaro in the UK:
A.NHS Access
Only for type 2 diabetes patients.
Prescribed by GPs or endocrinologists if blood glucose targets aren't being met with other therapies.
Weight loss-only use is not yet approved via NHS at the time of writing.
B.Private Clinics & Online Pharmacies
Accessible with an online consultation.
Reputable providers include:
Simple Online Pharmacy
The Online Clinic
Manual
Juniper
Superdrug Online Doctor
Must meet BMI criteria (typically BMI ≥30, or ≥27 with health conditions).
Mounjaro Reviews in the UK
UK-based reviews for Mounjaro are largely positive, particularly regarding weight loss, appetite control, and energy levels. Here's what users are saying:
⭐️⭐️⭐️⭐️⭐️
"I've tried both Saxenda and Wegovy. Mounjaro is the first that actually killed my hunger. Down 12kg in 9 weeks and no binge urges." — Emma, London
⭐️⭐️⭐️⭐️
"Slight nausea at first, but it passed after 2 weeks. Now I feel in control of my eating for the first time in years." — Jamal, Birmingham
⭐️⭐️⭐️⭐️⭐️
"Private prescription through Juniper was smooth. Expensive, yes, but worth every penny." — Rebecca, Edinburgh