Mounjaro Prices Rise by 170%—Is Wegovy the Better Option?
An estimated 64.5% of adult Brits are overweight or living with obesity, yet more than 71% (around 48 million people) say weight loss injections are inaccessible. Now, with Mounjaro prices set to surge by up to 170%, access to these treatments could become even more limited for millions.
Long before these hikes, affordability for weight loss injections was already a barrier. A 2025 ZAVA survey revealed:
- 49% of Brits (nearly 33 million people) can only afford up to £80 per month, far below Mounjaro’s new £170–£310 range.
- With Wegovy’s highest dose (2.4mg) now capped at £189.99, experts say it could offer a far more accessible option for patients looking to escape Mounjaro’s steep price hikes.
Dr. Crystal Wyllie, ZAVA doctor, says:
“We’re seeing record interest in these drugs, but price and strict NHS eligibility criteria mean many are left without safe, regulated access. Cheaper alternatives like Wegovy can help, but ongoing support is key.”
The Mounjaro price surge: what patients are facing
Mounjaro prices recently jumped by up to 170% in the UK, leaving some patients now paying nearly three times more for their treatment. In response, the company has absorbed some of the cost increase for Mounjaro’s weight loss injections and significantly reduced the price of Wegovy’s, making it a more affordable alternative for those looking to switch.
ZAVA pricing (already in effect, after absorbing costs):
| Mounjaro dose | Current price | New price | Price increase |
| 2.5mg | £149.99 | £169.99 | 13.33% |
| 5mg | £149.99 | £199.99 | 33.34% |
| 7.5mg | £169.99 | £249.99 | 47.06% |
| 10mg | £189.99 | £279.99 | 47.37% |
| 12.5mg | £199.99 | £299.99 | 50.00% |
| 15mg | £199.99 | £309.99 | 55.00% |
While Mounjaro prices have rocketed by up to 170%, new reductions on Wegovy could provide a lifeline for millions of Brits who say weight loss injections are currently inaccessible.
ZAVA has lowered Wegovy costs by up to 29%, bringing several doses closer to the affordability threshold and potentially opening access for millions.
Can you switch from Mounjaro to Wegovy?
Yes, and to minimise disruption, the clinical guidance was updated (developed with obesity and endocrinology specialists):
- No “washout” period required. Patients can take Wegovy 7 days after their last Mounjaro dose.
- No need to restart at the lowest dose. Patients can start Wegovy at a higher dose aligned with their previous Mounjaro treatment.
| Mounjaro → | Wegovy* |
| 2.5mg | 0.25mg |
| 5mg | 0.5mg |
| 7.5mg | 0.5mg |
| 10mg | 1mg |
| 12.5mg | 1mg |
| 15mg | 1mg |
(*Max recommended switching doses. Lower doses may be used if side effects are a concern.)
Why Brits are really turning to weight loss jabs
The ZAVA survey reveals that the boom in weight loss injections is driven by more than just medical advice or social media hype:
- 90% of Brits taking weight loss jabs are motivated by factors beyond improving overall health
- 15% want to boost confidence or improve their appearance.
- Only 3% say social media influenced their decision.
- 24% remain concerned about side effects and long-term health risks.
Dr. Crystal Wyllie concludes:
“For many patients, the recent rise in Mounjaro prices means the treatment has become far less affordable, which is why switching to alternatives like Wegovy is now being considered more often. While Mounjaro is highly effective, other GLP-1 medications can still deliver strong weight loss results for most people, and in some cases, may even be better tolerated if side effects are an issue.
Switching between these treatments does require careful medical supervision to ensure safety and effectiveness, but with the right guidance, it can be a smooth process. The most important thing is that patients don’t feel forced into unsafe or unregulated options because of cost, affordability, and accessibility need to be part of the conversation if we want long-term, sustainable results for those who need support with their weight.”
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