Mounjaro Shipments Paused in the UK Ahead of Major Price Hike

Written by Dr. Simon Khela MBChB MRCGP, GMC Registered Doctor

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The manufacturer of the weight loss injection Mounjaro (tirzepatide) has announced a temporary pause in shipments to the UK. The decision, made by US pharmaceutical giant Eli Lilly, comes just days before a dramatic 170% price increase set to take effect on 1 September 2025.

This move has sparked widespread concern among patients, pharmacies, and healthcare providers, with reports of shortages across the country.

Why Shipments Have Stopped

US pharmaceutical company Eli Lilly has stated that the pause in UK shipments is intended to manage supply fairly and ensure patients already prescribed the medication can continue treatment without disruption.

The company confirmed that it has placed allocations and legal protections to prevent inappropriate bulk ordering by providers and pharmacies. Despite these measures, demand has soared in recent weeks, with many patients attempting to stockpile Mounjaro ahead of the steep price hike.

From 1 September, the cost of the highest-dose pen will rise from £122 to £330 per month a significant increase likely to reshape how patients access treatment privately.

Shortages Across Pharmacies

The pause has had immediate consequences. Major pharmacy chains such as Boots, Lloyds, Superdrug, and Well Pharmacy have reported difficulties in meeting demand:

1. Boots Online Doctor listed several higher doses (7.5mg-15mg pens) as unavailable.
2. Lloyds Pharmacy confirmed it was out of stock for new prescribers of the higher-dose pens.
3. Superdrug temporarily stopped taking new customer orders after being overwhelmed with demand.
4. Well Pharmacy reported ntermittent supply but continues to work with wholesalers to maintain availability.

Online providers have been equally affected. Pharmacy2U experienced a significant short-term surge, while Simple Online Pharmacy paused sales to new patients and limited existing patients to a four-week supply to prevent hoarding.

NHS vs Private Access to Mounjaro

While many people in the UK rely on private prescriptions for Mounjaro, the medication was introduced on the NHS in June 2025. However, access is patchy only 8 of the 42 NHS Integrated Care Boards in England currently provide the treatment.

Eli Lilly has confirmed that the price increase will not affect NHS supply, but limited rollout means many patients have no choice but to seek private access, where the upcoming rise will have a direct financial impact.

Rising Demand for Alternatives: Wegovy Surge

The pause in Mounjaro shipments has driven patients to consider alternatives such as Wegovy (semaglutide). Pharmacies and providers have reported a sharp rise in demand, with one supplier noting a 2,600% surge in sales.

At around £85 per month, Wegovy is a more affordable option compared to the new price of Mounjaro. However, patients switching from Mounjaro are advised to take a one-week break between medications to avoid complications.

Healthcare providers have also noted a 400% increase in demand for GLP-1 medications overall, reflecting how central these drugs have become to weight loss management.

Concerns Around Stockpiling and Patient Safety

The National Pharmacy Association (NPA) has raised concerns about stockpiling and the risks posed by unregulated sellers.

• Olivier Picard, Chair of the NPA, warned that bulk buying could not only reduce availability for genuine patients but also undermine proper medical supervision.
• The NPA has urged patients to avoid unlicensed sellers, where counterfeit or unsafe products may be circulating.

What Patients Should Do

For those currently prescribed Mounjaro, it is important to:

1. Stick to your treatment plan - Avoid increasing your order quantity unnecessarily.
2. Consult your prescribing doctor - Discuss whether Mounjaro remains the best option or if an alternative treatment like Wegovy may be more suitable.
3. Be cautious of unregulated sellers - Always obtain prescriptions through trusted clinics or pharmacies.
4. Plan for cost changes - Understand how the upcoming increase could affect long-term access.

Support at Private Medical Clinic

At the Private Medical Clinic, we understand the uncertainty this situation may cause. Our team of GPs and specialists can provide:

• Weight Loss Injections - Including Mounjaro and Wegovy, with medical supervision.
• Private GP Services - Same-day appointments for prescriptions, advice, and follow-up care.
• Private Blood Tests- Essential monitoring to ensure your treatment remains safe.
• Depression and Anxiety Treatment - Supporting your mental wellbeing, which often plays a key role in weight management.

Related Blog Posts

Mounjaro vs Wegovy: What's the Difference?

Are Weight Loss Injections Safe?