UK weight loss injection pricing changed materially in September 2025, when Eli Lilly raised Mounjaro's UK list price — which had launched below other European markets to support faster access — bringing it closer to prices elsewhere. Every private provider repriced, and the figures circulating online have been unreliable ever since. This guide sets out what Mounjaro and Wegovy actually cost across the UK market in 2026, how NHS access compares, and how to avoid the pricing traps.

Quick Takeaway:

• UK private Mounjaro pricing generally runs from roughly £129–£200 at the lowest dose to £299–£339 at the highest
• Wegovy is often cheaper, with published starting points around £99 per pen and programme pricing from £149–£269
• Foundayo, the oral GLP-1, has appeared at £129–£179 per month — cheaper than injectables
• NHS tirzepatide is available within NICE criteria at the standard prescription charge, or free if exempt
• Prices rise substantially with dose escalation, so budget from your maintenance dose

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UK Provider Pricing at a Glance

Why Prices Moved in 2025

Mounjaro launched in the UK at a price below other European markets, a deliberate decision to support faster access. Eli Lilly raised the UK list price from September 2025 to bring it closer to international levels. Trade reporting described pharmacy cost prices rising from the £92–£122 range as a result, alongside accounts of patients stockpiling ahead of the change.

Providers responded differently. Pharmacy2U, the UK's largest online pharmacy, publicly announced it would freeze its Mounjaro prices for weight loss patients until further notice rather than pass the increase on. Others repriced immediately.

Important: Any UK price you find in an article, comparison site, or forum post predating September 2025 is out of date. Even post-2025 comparisons diverge — two independent August 2026 comparisons put Superdrug's Mounjaro range at roughly £176–£334 and £180.50–£338.50 respectively. Always check the live price for your dose.

Wegovy List Prices for Reference

UK published list prices for semaglutide (Wegovy) have been approximately:

These are list prices rather than what you pay — providers add a dispensing and service margin — but they explain the shape of provider pricing, and why costs step up so sharply at 1.7 mg and 2.4 mg.

The NHS Route

NICE has recommended tirzepatide for weight management within defined criteria, with NHS rollout phased and prioritised by clinical need. Where you qualify, you pay the standard NHS prescription charge — or nothing if you are exempt.

Several private providers say so themselves. Asda Online Doctor states that if a specialist weight management service approves treatment you pay only the NHS prescription charge, and notes that Mounjaro has been approved for NHS prescription from GPs. Superdrug publishes equivalent guidance.

NHS access also runs through Tier 3 specialist weight management, delivered in some areas by Oviva — free via GP referral, endocrinologist-led, with up to two years of dietetic and psychological support.

Before paying privately, ask your GP two questions: am I eligible for Tier 3 weight management, and am I eligible for NHS tirzepatide. The cost difference is several thousand pounds a year.

The Pricing Traps

1. "From" pricing is the starter dose. A provider advertising "from £129" is quoting 2.5 mg Mounjaro. Your maintenance dose may cost more than double.
2. Programme price steps. Second Nature discloses that Mounjaro moves from £229 to £299 after three months — clearly stated, but easy to miss.
3. Multi-month plans. Cheaper per month, but prescription medicines cannot be returned once dispensed.
4. Bundled coaching. Programme-led providers include coaching in the price whether you use it or not. Pharmacy-led providers do not.
5. Extras. Needles and a sharps bin are included by Superdrug and costed explicitly by Embla; elsewhere they are an additional cost.
6. Discount codes. Available at some smaller pharmacies and not at all at Boots. Stacking a first-order code with a newsletter discount has been reported to bring a first month of 2.5 mg Mounjaro to around £119.

How to Get the Best UK Price

• Check NHS eligibility first. Nothing private competes with a prescription charge.
• Price your maintenance dose, not the starter dose, across three or four providers.
• Start Pay As You Go if you have never taken a GLP-1 — Simple Online Pharmacy offers this — then move to a subscription once you know you tolerate it.
• Consider Wegovy if cost matters more than maximum efficacy; it is frequently cheaper than Mounjaro at equivalent tiers.
• Consider the oral GLP-1. Foundayo programme pricing at £129–£179 undercuts injectables.
• Consider tablets if injections are unaffordable — orlistat and Mysimba from £39.99 monthly at Asda.
• Decide whether you want coaching before paying for a programme that bundles it.

Frequently Asked Questions

How much does Mounjaro cost in the UK?

Across UK private providers, Mounjaro generally starts between roughly £129 and £200 at the lowest dose and rises to between about £299 and £339 at the highest strengths. Prices moved after Eli Lilly raised the UK list price from September 2025.

Is Wegovy cheaper than Mounjaro in the UK?

Often, yes. Published starting points include Wegovy from £99 per pen at ZAVA and programme pricing from £149 at Second Nature and £164 at Juniper, generally below equivalent Mounjaro tiers.

Can I get Mounjaro on the NHS?

NICE has recommended tirzepatide for weight management within defined criteria, with phased NHS rollout, and Mounjaro has been approved for NHS prescription from GPs. Where you qualify, you pay the standard NHS prescription charge or nothing if exempt. Speak to your GP.

Why did UK prices go up in 2025?

Eli Lilly raised Mounjaro's UK list price from September 2025. Mounjaro had launched in the UK below other European markets to support faster access, and the increase brought it closer to international pricing. Pharmacy cost prices rose accordingly.

What is the cheapest way to get weight loss injections in the UK?

NHS treatment where you qualify. Privately, the lowest published entry points are around £129 for Mounjaro at Simple Online Pharmacy and around £99 per pen for Wegovy at ZAVA, though costs rise with dose. Oral tablets from £39.99 monthly are the cheapest prescription option overall.

Are there discount codes for UK weight loss injections?

Some smaller online pharmacies offer first-order codes and newsletter discounts that can be combined; Boots does not offer a discount code for Mounjaro or other weight care treatments. Reported stacked discounts have brought a first month of 2.5 mg Mounjaro to around £119.

Bottom Line

UK weight loss injection pricing is a moving target, and most of what is published online is out of date. The reliable facts are these: private Mounjaro runs roughly £129–£339 across doses and providers, Wegovy is generally cheaper, the oral GLP-1 is cheaper still, and NHS treatment costs a prescription charge where you qualify.

Do three things before you buy. Ask your GP about NHS eligibility. Price your maintenance dose rather than the starter dose. And start month-to-month if you have never taken a GLP-1, because the most expensive pen is the one you cannot tolerate.

US readers: CoreAge Rx offers all-in monthly pricing from $179–$399 including medication and provider messaging, with 12–24 hour approvals.

Medical disclaimer: Informational only, not medical advice. Mounjaro, Wegovy, and Foundayo are prescription medicines with real risks and contraindications. UK pricing changes frequently and should be verified directly with providers. Consult a qualified healthcare professional before starting treatment.

Sources: Provider published UK pricing pages as cited in the linked reviews; The Pharmaceutical Journal reporting on the Mounjaro price freeze; UK published list prices for semaglutide; NICE tirzepatide and obesity guidance; London Assembly Health Committee call for evidence on weight loss medication.

Date reviewed: August 2026