Short answer: Mounjaro® (tirzepatide, made by Eli Lilly and Company) is a prescription-only medicine in the UK. You can get it on the NHS if you meet the eligibility criteria, or privately through a prescriber or a GPhC-registered online pharmacy. Privately, it was advertised from £148 to £339 a month by the UK pharmacies we checked on 1 October 2026.
What Mounjaro costs privately in the UK
Private prices depend on the pharmacy and on the pen the prescriber decides on. These are the monthly prices each pharmacy advertised on its own website on the date we checked. We earn nothing from any of them.
| Pharmacy | Per month | Consultation |
|---|---|---|
| Asda Online Doctor | £148.97 – £298.97 | Included |
| Chemist4U (GPhC 9012464) | £148 – £298 | Included |
| Simple Online Pharmacy (pay as you go) | £169 – £319.99 | Not itemised |
| Boots Online Doctor | £179 – £339 | Not itemised |
| Superdrug Online Doctor | £179 – £339 | Included |
| LloydsPharmacy Online Doctor | £179.99 – £309.99 | Check: a separate new-patient consultation price is advertised |
| MedExpress (GPhC 9012633) | £179.99 – £309.99 | Not stated |
| Juniper | £199 – £339 | Included |
“From” is the starting pen and “to” the highest maintenance pen. Prices change often: always confirm the full, current price with the pharmacy before you start. To compare routes side by side, use the cost calculator.
Why Mounjaro got more expensive
Eli Lilly raised the UK list price of Mounjaro by up to 170% from 1 September 2025. The increase hit private prescriptions; medicine supplied through the NHS was not affected. That is why private prices today sit well above what many people paid in early 2025, and why the gap between the NHS route and the private route is now so large.
Mounjaro on the NHS
NICE recommends tirzepatide for weight management (technology appraisal TA1026) for adults with a BMI of at least 35 and at least one weight-related health condition, alongside a reduced-calorie diet and more physical activity. Because so many people qualify, NHS England is rolling access out in phases, starting with people who have the highest clinical need. For type 2 diabetes, Mounjaro is prescribed under separate NICE guidance.
On the NHS you pay the standard prescription charge — £9.90 per item in England, nothing in Scotland, Wales or Northern Ireland. Your GP is the first conversation either way: they can tell you whether you meet the criteria and how the phased rollout works where you live.
The three legal routes
- NHS: through your GP or a specialist weight-management service, if you meet NICE’s criteria and your area offers it.
- Private prescriber: a private GP or clinic assesses you and decides whether to prescribe; you pay for the assessment and the medicine.
- Regulated online pharmacy: a GPhC-registered pharmacy whose UK prescriber reviews your health information before anything is dispensed. Since 2025 the GPhC expects prescribers to verify that information independently, not just rely on a questionnaire.
The routes are explained in full on the home page.
Fake Mounjaro pens
In February 2026 the MHRA reported falsified Mounjaro pens found in the UK supply chain, supplied through an online pharmacy. Illegal sellers also offer “tirzepatide” without a prescription on social media and messaging apps. A genuine pen only comes from a UK-registered pharmacy against a prescription. Before you pay anyone, check the pharmacy on the General Pharmaceutical Council’s public register and read how to spot an illegitimate seller.
Mounjaro, Wegovy and Ozempic
Mounjaro is tirzepatide and acts on two gut-hormone pathways; Wegovy® and Ozempic® are both semaglutide, made by Novo Nordisk A/S. Wegovy is the semaglutide licensed for weight management, while Ozempic is licensed for type 2 diabetes. Which one, if any, is right for you is a decision for the prescriber assessing you. See Wegovy in the UK for its prices and NHS criteria.
Sources, checked 1 October 2026: each pharmacy’s own price page · NICE TA1026 (tirzepatide for managing overweight and obesity) · nhs.uk prescription charges · MHRA Drug Safety Update, February 2026 · GPhC guidance for pharmacy services provided at a distance. Information only — not medical advice. Mounjaro® is a trademark of Eli Lilly and Company; we are not affiliated with it.
Common questions
How much is Mounjaro in the UK?
Privately, UK online pharmacies advertised Mounjaro from £148 to £339 a month on 1 October 2026, depending on the pharmacy and the pen the prescriber decides on. On the NHS you pay the standard prescription charge: £9.90 per item in England, free in Scotland, Wales and Northern Ireland.
Can I get Mounjaro on the NHS?
Possibly. NICE recommends tirzepatide for weight management for adults with a BMI of at least 35 and at least one weight-related condition, and NHS England is rolling access out in phases, starting with people with the highest clinical need. Ask your GP whether you qualify.
Can I buy Mounjaro without a prescription in the UK?
No. Mounjaro is a prescription-only medicine. Any seller offering it, or ‘tirzepatide’, without a prescription is operating outside UK medicines regulation, and the MHRA has found falsified pens in circulation.