Precision Pharmacy Tirzepatide: Licensed Mounjaro vs Compounded (October 2026)

01 · Before you buy

What to check about any pharmacy selling tirzepatide

The first thing to check is whether the product is licensed Mounjaro, because Mounjaro is the licensed brand of tirzepatide in the UK. It is made by Eli Lilly, licensed for weight management in adults and for type 2 diabetes, and supplied as a pre-filled multi-dose KwikPen.¹

A pharmacy that names a brand, shows the KwikPen strengths and asks you to complete a clinical assessment is behaving as a regulated supplier should. Use this checklist:

Be wary of anyone offering to supply without a consultation or prescription, or selling vials or powders described as tirzepatide. The MHRA publishes counterfeit medicine alerts and runs the Yellow Card scheme for reporting problems.⁷ For more on compounded products, see our guide to tirzepatide compound options in the UK.

02 · Cost

What Mounjaro costs with us

The Mounjaro pen costs £169.99 per month at the 2.5mg starting dose and £218.99 at 5mg. Higher strengths run £279.99 (7.5mg), £290.99 (10mg), £319.99 (12.5mg) and £329.99 (15mg). Each pen lasts four weeks.

New customers save £40 on their first order at any dose with code FIRST40, including people switching from another provider. An automatic £25 reorder discount applies to every future order (code DOSE25).

If you step up after 4 weeks on each dose, your first four pens (2.5mg to 10mg) cost £959.96 at standard prices. A first year costs £2,711.88 if you settle at 5mg, up to £3,599.88 at 15mg. A new customer's first order is £40 less and every later order £25 less. Across the UK pharmacies we track, Mounjaro pens ranged from £143.96 to £339.00 per month as of 10 October 2026.

03 · How it works

How ordering works

Ordering takes three steps, and the consultation is free.

• Free online consultation: a short health questionnaire, no charge and no obligation. Start your free consultation.
• Prescriber review: a GPhC-registered prescriber reviews your answers. Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full.
• Dispatch and delivery: same-day dispatch when ordered by 3pm, then free next-day tracked delivery in temperature-controlled packaging. Saturday delivery is £14.99.

You can also read our wider Buy Mounjaro guide or compare all weight loss treatments.

04 · Is it licensed tirzepatide?

Licensed tirzepatide explained

Mounjaro is the brand name for tirzepatide, a once-weekly injectable prescription medicine made by Eli Lilly. In the UK it is licensed for weight management in adults and for type 2 diabetes.¹ It comes as a KwikPen in six strengths: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg and 15mg.

Tirzepatide activates two natural gut-hormone receptors at once, GIP and GLP-1. Together these help regulate appetite, slow how quickly the stomach empties and improve the way the body responds to insulin.¹ Most people feel fuller sooner and less hungry between meals, which supports a reduced-calorie diet.

05 · Who can be prescribed

Who can be prescribed Mounjaro

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 such as high blood pressure, high cholesterol, obstructive sleep apnoea, cardiovascular disease, prediabetes or type 2 diabetes. It must be used alongside a reduced-calorie diet and increased physical activity.¹

A prescriber will assess your BMI, medical history and current medicines before deciding whether it is suitable.¹¹

Mounjaro is also 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.

06 · What trials show

What the licensed product achieved in trials

In the SURMOUNT-1 trial of 2,539 adults, people taking tirzepatide alongside diet and exercise lost on average 15% of their body weight on 5mg, 19.5% on 10mg and 20.9% on 15mg over 72 weeks, compared with 3.1% with lifestyle changes alone.² These are trial averages and individual results vary.

For someone starting at 100 kg, 20.9% is about 21 kg. At 72 weeks, 85% of participants on 5mg, 89% on 10mg and 91% on 15mg had lost at least 5% of their body weight. Half of participants on 10mg and 57% on 15mg lost at least 20%.²

07 · Why choose us

What our service includes

We are a GPhC-registered UK online pharmacy (registration 9012878) and you can verify us on the GPhC register. Our Mounjaro comes through official LillyDirect supply, direct from Eli Lilly's UK distribution, as genuine KwikPens. All six doses are stocked.

Ongoing monthly reviews, dose titration and side-effect support from the prescribing team are included, and repeat orders re-check suitability with no auto-shipping. Needles, a sharps bin and injection guidance come with every order. Our free GLPTrackr app helps you track your journey. Support is available Monday to Friday, 9am to 5pm, on 0333 207 0413.

Looking at other pharmacy names? Compare our notes on Promise pharmacy, Medrx pharmacy and Link pharmacy.