When Will the New Mounjaro Prices Take Effect?

Eli Lilly has confirmed that the cost of Mounjaro (tirzepatide) will rise by up to 170% from 1st September 2025. While this adjustment may appear to only impact pharmacies, it will also affect patients who access Mounjaro privately. If you are currently using Mounjaro, you might be wondering when this takes effect, whether you’ll be affected, and what your options are moving forward.

What is Mounjaro?

Mounjaro is a prescription-only medication which is licensed for patients who have a BMI of 30 or over, or 28 or over with a co-morbidity. It is made up of the active ingredient tirzepatide and has helped patients nationwide to lose around 20% of their weight in a year. Tirzepatide does this through being both a GLP-1 and GLP-based medication, which can help to effectively regulate glucose levels in your blood and reduce your appetite which ultimately results in weight loss. 

Why has the price of Mounjaro been increased?

When Mounjaro was first released into the UK market, it was issued at a lower cost so that they could improve the levels of accessibility for patients nationwide. Eli Lilly has now decided that on September 1st 2025, they will align UK costs with the European market, causing prices to inflate drastically. This also comes at a time of debate on a global scale, where discussions in the US, lead by Donald Trump, are based around a “most favoured nation” pricing, in which the US should be charged an equivalent cost or cheaper than the UK and Europe due to the heavy demand. 

Has the product Mounjaro changed at all?

No, Mounjaro as a product is still going to remain the same. It will still be a once-weekly injectable pen that includes four doses, that comes in six strengths and still has tirzepatide as the active ingredient.  The only thing that is changing about Mounjaro is the price to obtain it for both the pharmacies and the patients. 

Will I be affected by the Mounjaro price increase?

If you are getting your Mounjaro prescription through the NHS, you will not be affected by this change due to set prescription prices and contracts. However, if you are obtaining this privately, such as through an online pharmacy like Pharmacy Planet, you may see a rise in price occur. As of 20th August, Pharmacy Planet has not raised its prices; however, we will keep you informed of any cost adjustments. 

What alternatives are available if I can no longer afford Mounjaro?

If Mounjaro becomes too expensive, there are clinically approved alternatives available. Another weight loss medication in the market that works similarly to Mounjaro is Wegovy. Wegovy is comprised of the active ingredient Semaglutide, which is in the same family of medicines as Tirzepatide. It is taken once weekly and has been proven to lower the risk of cardiovascular events like heart attacks and strokes, as well as losing around 15% of body weight over 68 weeks. If you’re looking to switch over to Wegovy from Mounjaro, a member of our prescribing team can help you to switch over without interrupting your treatment. 

Final Thoughts

The price of Mounjaro will increase from 1st September 2025, and this will affect many online pharmacies and patients across the board. However, as a patient, you shouldn’t need to worry about your weight loss journey coming to a halt. There are safe alternatives like Wegovy, which are a lot cheaper and work similarly to Mounjaro, meaning with the right guidance, you can stay on track. At Pharmacy Planet, our team of clinicians are here to support you. Whether you want to continue with Mounjaro regardless of the cost or explore other options, we will always be here to help. Start your secure online consultation today to discuss your treatment options with a UK-registered prescriber.