How to Access Mounjaro for Weight Loss in the UK
London, 8 January 2026 – Mounjaro, containing the active ingredient tirzepatide, is a prescription-only injectable medication approved for weight loss in the UK since November 2023. It mimics gut hormones to reduce appetite and support weight management, alongside diet and exercise. In the UK, it is available through the NHS for eligible patients or privately via online pharmacies, with phased rollout and varying access across regions.
NHS Access and Eligibility
Mounjaro is available on the NHS in England through weight management services and GPs, with eligibility criteria including a BMI of at least 40 kg/m², or 37.5 kg/m² for people of South Asian, Chinese, other Asian, Middle Eastern, Black African, or Afro-Caribbean ethnicity. Patients must also have at least four obesity-related conditions such as hypertension, dyslipidaemia, obstructive sleep apnoea, cardiovascular disease, or type 2 diabetes. Access is limited to a phased rollout targeting around 220,000 people over three years due to cost. In Wales, it is prescribed via specialist services; Scotland offers it through primary care or specialists; and Northern Ireland expects availability in 2026. To apply, consult your GP with medical history.
Private Prescription Options
For those ineligible for NHS access, Mounjaro can be obtained privately through regulated online pharmacies like Asda Online Doctor, Boots Online Doctor, Chemist4U, Superdrug Online Doctor, and MedExpress. These services require an online consultation with a UK-based prescriber to assess suitability. Payment options include Visa, Mastercard, PayPal, and instalment plans. It is not available over-the-counter and must be prescribed by a healthcare professional. Avoid unregulated or compounded products, as they may be unsafe.
Costs and Dosing
Private prices vary by dose and provider. For example, Boots Online Doctor offers Mounjaro at £176.97 for 2.5mg, £189.97 for 5mg, up to £334.97 for 15mg per pen. Asda Online Doctor starts from £168.97, Superdrug from £195, and MedExpress from £99.99 for alternatives like Wegovy. Dosing begins low and increases weekly, with pens containing multiple doses. Eli Lilly has raised prices in the UK to align with Europe, making alternatives like Wegovy more cost-effective.
Key Facts / Stats
| Aspect | Details |
|---|---|
| Approval Date | MHRA approved for weight loss in November 2023 |
| NHS Eligibility BMI | ≥40 kg/m² or ≥37.5 kg/m² for certain ethnic groups |
| Required Conditions | At least 4 of: hypertension, dyslipidaemia, OSA, CVD, T2DM |
| Typical Weight Loss | Up to 22.5% of starting weight in trials |
| Common Side Effects | Nausea, diarrhoea, decreased appetite, vomiting |
| Rare Risks | Pancreatitis, thyroid tumours, allergic reactions |
Frequently Asked Questions
Is Mounjaro safe for weight loss?
Yes, Mounjaro is approved by the MHRA for weight loss and has been monitored for side effects. Common issues include nausea and diarrhoea, which often decrease over time. Serious risks like pancreatitis or thyroid issues are rare but require immediate medical attention. It is not addictive and should be used with diet and exercise.
Can I get Mounjaro without a prescription?
No, Mounjaro is prescription-only. It must be obtained through a GP, NHS service, or regulated online pharmacy after a consultation.
What are the differences between Mounjaro and alternatives like Wegovy?
Mounjaro works on GLP-1 and GIP hormones for potentially greater weight loss, while Wegovy focuses on GLP-1. Wegovy may be cheaper in the UK now.
How long does it take to see results?
Weight loss varies, but clinical trials show significant reductions within months, with full effects over time.
Is there a generic version available?
No generic Mounjaro exists yet in the UK. Patents and exclusivity may delay it until after 2030.