Help With Mounjaro Cost in the UK (October 2026)

01 · Cost help

How to get help with Mounjaro cost

The most direct help is the live discount structure. A new customer gets £40 off their first order at any dose with code FIRST40, including people switching to us from another provider at a higher dose. After that, an automatic £25 reorder discount applies to every future order (code DOSE25). Details and codes are on our Mounjaro discount code guide.

Standard pen prices are £169.99 at 2.5mg, £218.99 at 5mg, £279.99 at 7.5mg, £290.99 at 10mg, £319.99 at 12.5mg and £329.99 at 15mg. You can see them and start from the Mounjaro pen page. The consultation is free, and the price shown is the price paid, with no hidden fees.

02 · Budgeting

Spreading the cost and planning the year

We accept Visa, Mastercard, Klarna and pay-monthly options, with no subscriptions. See our guide on how to spread the cost of Mounjaro.

These are before discounts: a new customer's first order is £40 less and every later order £25 less. Settling at 7.5mg, 10mg or 12.5mg costs £279.99, £290.99 or £319.99 per month at standard price.

03 · Market

Comparing prices across providers

Across the UK pharmacies we track, a Mounjaro pen costs between £143.96 and £339.00 per month depending on dose and provider (checked 10 October 2026). Starting 2.5mg pens run from £143.96 to £179.99. For the same dose, providers differ by £27 to £41, so comparing is worthwhile. Boots' dose prices run from £179.00 to £339.00.

04 · NHS or private

NHS or private: the honest picture

Mounjaro is available on the NHS, but access is being phased in over several years. NICE recommends it for adults with a BMI of at least 35 plus at least one weight-related condition, and the primary-care rollout began in June 2025 with the highest-need groups first, initially BMI 40+ with four or more qualifying conditions.⁴⁶ Full rollout is expected to take years, which is why many people who meet the licensed criteria choose regulated private treatment rather than waiting.

If you are unsure where you stand, ask your GP. Our free consultation is a no-obligation way to check private suitability: start your free consultation.

05 · Avoiding fake pens

Cheap is not worth a fake pen

The MHRA has seized thousands of fake weight-loss pens in the UK and has issued alerts after falsified Mounjaro pens were identified. Fake pens have caused hospitalisations, and some contained insulin rather than tirzepatide.⁷ Only buy from a pharmacy you can verify on the GPhC register, never from social media, beauty salons or unverified websites. Genuine treatment always involves a prescription and a clinical consultation.¹²

Our Mounjaro comes through official LillyDirect supply, direct from Eli Lilly's UK distribution. A genuine pen has a batch number and expiry date, and the solution is clear and colourless.¹³

06 · Is it worth it

What you are paying for

In the SURMOUNT-1 trial of 2,539 adults, people taking tirzepatide alongside diet and exercise lost on average 15% of body weight on 5mg, 19.5% on 10mg and 20.9% on 15mg over 72 weeks, compared with 3.1% with lifestyle changes alone. These are trial averages and individual results vary.² Treatment works alongside a reduced-calorie diet and increased physical activity, not instead of them. Read more on whether Mounjaro can help with weight loss.

Mounjaro is licensed for weight management in adults with a BMI of 30 or above, or a BMI between 27 and 30 with at least one weight-related condition. A prescriber assesses your BMI, history and medicines first.¹

07 · How ordering works

How ordering works

Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full. All six doses are in stock. Ongoing monthly reviews are included. See also our next-day delivery cost page.