| TL;DR Mounjaro (tirzepatide) private prescription costs in the UK range from approximately £124 to £375 per month in 2026, depending on the dose and provider. The 2.5mg starter dose is the cheapest, and costs increase with each dose level up to the 15mg maintenance dose. Following Eli Lilly’s September 2025 price increase, Mounjaro became significantly more expensive, making price comparison between GPhC-registered pharmacies more important than ever. |
Mounjaro (tirzepatide) has become one of the most sought-after prescription treatments in the UK since its approval by the MHRA in 2023. A dual GIP and GLP-1 receptor agonist manufactured by Eli Lilly, it produces average weight loss of between 15% and 22% of body weight in clinical trials, making it the most effective pharmacological weight loss treatment currently available in the UK.
This guide provides a comprehensive Mounjaro price comparison UK covering current 2026 pricing by dose, the factors that determine cost, how to find the cheapest Mounjaro UK options safely, NHS versus private access, and what you should check beyond the headline price to avoid hidden costs.
How Much Is Mounjaro UK? Understanding the Pricing Structure
Mounjaro is a prescription-only medication in the UK. This means you cannot purchase it over the counter, and obtaining it always requires a clinical consultation with a qualified prescriber, whether online or in person.
The cost of Mounjaro in the UK is determined by several factors:
Dose strength: Mounjaro is available in six dose strengths: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, and 15mg weekly. Each pen contains four weekly doses, making one pen a full month’s supply. The price increases with dose strength because higher doses contain more of the active ingredient (tirzepatide).
Manufacturing: Mounjaro is a temperature-sensitive injectable medicine requiring refrigerated storage and transport between 2 and 8 degrees Celsius. These cold chain requirements add to the supply and distribution costs.
Consultation and prescribing fees: The cost of the clinical assessment and prescription varies between providers, with some including it in the headline price and others charging separately (typically £10 to £30 per consultation).
Provider overheads: High street chains such as Boots and Asda tend to charge higher prices for Mounjaro than specialist online pharmacies, reflecting the different cost structures of these businesses.
Mounjaro Price UK 2026: Current Costs by Dose
The following price ranges reflect approximate costs at GPhC-registered UK online pharmacies as of early-to-mid 2026. Prices change frequently, so always verify directly with your chosen provider before purchasing.
2.5mg starter dose (Weeks 1 to 4)
Private prescription prices range from approximately £124 to £219 per month, with significant variation between providers. Specialist online pharmacies offer the most competitive pricing, while high street retailers such as Boots tend to charge at the higher end.
5mg dose (Weeks 5 to 8)
Private prescription prices range from approximately £149 to £240 per month.
7.5mg dose (Weeks 9 to 12)
Private prescription prices range from approximately £159 to £250 per month.
10mg dose (Weeks 13 to 16)
Private prescription prices range from approximately £169 to £270 per month.
12.5mg dose (Weeks 17 to 20)
Private prescription prices range from approximately £179 to £285 per month.
15mg maintenance dose (Week 21 onwards)
Private prescription prices range from approximately £249 to £375 per month, with most mainstream providers pricing in the £269 to £320 range.
Explore Weight Loss Treatments at Batley Pharmacy
Mounjaro Cost UK Private Prescription vs NHS
Private prescription
The great majority of UK patients currently access Mounjaro for weight management via private prescription, which means paying the full costs described above. Private access offers immediate availability subject to clinical eligibility, without waiting for NHS referral.
NHS prescription
Mounjaro received NICE approval for NHS weight management in 2024 under Technology Appraisal guidance. NHS patients who qualify would pay only the standard NHS prescription charge (£9.90 per item in England in 2026, or free in Scotland, Wales, and Northern Ireland).
However, NHS access to Mounjaro for weight management remains very restricted. It is being rolled out in phases through specialist weight management services (typically Tier 3 services), and NHS commissioning is not yet available in all areas of England. Eligibility criteria are strict, typically requiring:
- A BMI of 35 or above, or 30 or above with comorbidities such as type 2 diabetes or hypertension
- Evidence that previous lifestyle interventions have not produced adequate weight loss
- Referral to a specialist NHS weight management service
- A waiting list assessment (which can take twelve to eighteen months or more in high-demand areas)
Mounjaro UK Price Range 2026: Key Findings
Independent price comparison data compiled from multiple GPhC-registered UK pharmacy sources in early 2026 shows the following patterns:
- Specialist online pharmacies typically offer the most competitive pricing, with some offering the 2.5mg starter dose from as little as £124 to £130 per month after promotional discounts
- High street retailers (Boots, Asda, Superdrug) typically charge £180 to £220 or more for the same starter dose
- The difference between the cheapest and most expensive verified UK provider for the 15mg maintenance dose can exceed £120 per month, representing more than £1,400 per year for identical medication from the same manufacturer
- Prices at any given provider can change weekly or monthly in response to supply and commercial decisions, making ongoing comparison worthwhile
The most efficient approach is to identify two or three GPhC-registered providers offering competitive pricing with full ancillary inclusion, and reassess periodically as pricing fluctuates.
Get Weight Loss Support at Batley Pharmacy
Is Mounjaro NHS Free or Do I Always Pay?
Mounjaro is not universally free on the NHS. Whether you pay depends on:
- Your route of access (NHS weight management service vs private prescription)
- Whether you qualify under NICE eligibility criteria for NHS prescribing
- Whether your local ICB has commissioned the service
- Your exemption status from NHS prescription charges
If you access Mounjaro via a valid NHS prescription (whether for diabetes or weight management), you pay the standard prescription charge (currently £9.90 per item in England) or nothing if you are exempt.
FAQs
How much does Mounjaro cost per month in the UK in 2026?
Mounjaro monthly costs in the UK range from approximately £124 to £375 per month in 2026, depending on the dose and provider. The 2.5mg starter dose is cheapest (around £124 to £219), while the 15mg maintenance dose costs approximately £249 to £375. Always check whether consultation fees, needles, and delivery are included.
Why did Mounjaro prices increase in 2026?
Eli Lilly implemented a UK price increase for Mounjaro in September 2025. Following this increase, Mounjaro became notably more expensive than Wegovy across most dose levels, reversing the previous pricing relationship. The price increase reflected commercial and supply factors and affected all UK pharmacies simultaneously.
What is the cheapest way to get Mounjaro in the UK?
The cheapest Mounjaro is typically found through specialist GPhC-registered online pharmacies offering competitive pricing. Starter doses from around £124 per month have been available from verified providers. Discount codes for new patients, bundle deals across multiple doses, and regular price comparisons can reduce costs.
Is Mounjaro available on the NHS for weight loss?
Yes, Mounjaro received NICE approval for NHS weight management in 2024. However, NHS access is being rolled out in phases through specialist Tier 3 weight management services and remains very restricted in most areas. NHS eligibility requires strict BMI and comorbidity criteria. Speak to your GP about whether you qualify for an NHS referral.
How does Mounjaro compare to Wegovy on price?
Following Mounjaro’s September 2025 price increase, Wegovy is now typically £50 to £100 cheaper per month than Mounjaro at comparable dose stages. Over a full year, Wegovy may cost approximately £600 to £1,100 less than Mounjaro, depending on the provider.