How to Get the Diabetes Drug for Weight Loss in the UK (October 2026)

01 · The routes

How to get a diabetes drug for weight loss: your two routes

You can get it through an NHS referral or through a regulated private prescriber, and both need a prescription. Mounjaro is licensed in the UK for weight management in adults and for type 2 diabetes, so it is the medicine most people mean by the diabetes weight loss drug.¹ There is no legitimate way to buy it without a prescriber assessing you first.

The NHS route starts with your GP or a specialist weight-management service. 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, so many people who meet the licensed criteria choose regulated private treatment rather than waiting.

The private route is quicker to start. You complete a free online consultation, a GPhC-registered prescriber reviews it, and if the medicine is suitable it is dispensed by our registered pharmacy. Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full.

02 · Cost

What it costs and what the price includes

Every Mounjaro pen is one four-week supply at a stated dose, and the standard price is what every repeat order starts from. Your first 2.5mg pen costs £129.99 with code FIRST40 (standard price £169.99). A new customer gets £40 off their first order at any dose, including people switching to us at a higher dose; switching at 15mg, your first order is £289.99. After that, an automatic £25 reorder discount applies to every future order (code DOSE25).

The consultation is free and the price shown is the price paid, with no hidden fees. Delivery is free and next-day, tracked, in temperature-controlled packaging, with same-day dispatch when ordered by 3pm. Saturday delivery is £14.99. Needles, a sharps bin and injection guidance come with every order. You can view live dose prices on the Mounjaro pen page, and we accept Visa, Mastercard, Klarna and pay-monthly options, with no subscription lock-in.

Planning beyond the first pen matters, because treatment runs for months. The first four pens (2.5mg, 5mg, 7.5mg and 10mg) cost £959.96 at standard prices, before discounts. A first year of 13 pens costs £2,711.88 if you settle at 5mg, up to £3,599.88 at 15mg, again before discounts. A new customer's first order is £40 less and every later order £25 less. Our full breakdown is in the guide to diabetes drug monthly costs.

03 · Ordering

How ordering works in three steps

Ordering takes three steps, and you can begin on the Buy Mounjaro page.

• Free online consultation: a short health questionnaire, no charge and no obligation.
• Prescriber review: a GPhC-registered prescriber, not a scoring script, decides whether it is suitable.
• Dispensing and delivery: our registered pharmacy dispenses it and free next-day tracked delivery follows.

Repeat orders re-check suitability, and nothing ships automatically. Ongoing monthly reviews, dose-titration and follow-up assessments are handled by the prescribing team, with side-effect support from our team Monday to Friday, 9am to 5pm.

04 · What the drug is

What the diabetes drug for weight loss actually is

The medicine is Mounjaro, 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. It comes as a pre-filled multi-dose pen, the KwikPen, in six strengths: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg and 15mg.¹

It helps to understand why a diabetes medicine affects weight. Tirzepatide is the first treatment of its kind to activate 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 In practice, most people feel fuller sooner and less hungry between meals, which supports a reduced-calorie diet. That is the link between blood-sugar control and weight: the same hormone pathways are involved in both.

This dual action distinguishes Mounjaro from single-action GLP-1 medicines such as semaglutide (Wegovy and Ozempic).

The medicine does not work on its own. It must be used alongside a reduced-calorie diet and increased physical activity, and a prescriber will assess your BMI, medical history and current medicines before deciding whether it is suitable for you.¹ That assessment is the reason you cannot simply buy it from a shelf or a website with no questions asked.

One more practical fact about how long it stays in the body. Tirzepatide has a half-life of about five days, so after a final dose it takes roughly 4–5 weeks to clear the system. There is no way to speed this up, and nothing needs doing while it clears.¹ It is worth knowing this before you start, because it means any side effects or effects on appetite do not vanish the day after an injection.

Finally, the name matters when you read headlines. A new daily diabetes pill, a supplement sold as a natural alternative, and an injectable are not the same thing. Our page on the new diabetes drug for weight loss looks at the newer arrivals.

If you already have type 2 diabetes, this matters even more: the same medicine is licensed for your condition, and treatment and monitoring are coordinated differently, so your diabetes team should know about any change.

05 · Who is eligible

Who qualifies: licensed criteria versus NHS criteria

There are two different sets of criteria, and mixing them up is the most common source of confusion. The licensed criteria set out what the medicine may be prescribed for. The NHS criteria are narrower because access is being phased in. Meeting the first does not automatically mean meeting the second.

Under the licence, Mounjaro is 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. Examples include 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 then assesses your BMI, medical history and current medicines before deciding whether it is suitable.

On the NHS, NICE recommends Mounjaro for adults with a BMI of at least 35 plus at least one weight-related condition. 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.

What does this mean in practice? Someone with a BMI of 33 and no other condition falls outside the stated NHS group but meets the licensed criteria for weight management. Someone with a BMI of 28 and high blood pressure meets the licence through the weight-related condition route. Someone with a BMI of 41 and several qualifying conditions sits in the group the NHS prioritised first. Only a prescriber can confirm suitability for you.

Type 2 diabetes deserves its own note. Mounjaro is also licensed for type 2 diabetes, where it improves blood sugar control (HbA1c) and supports weight loss.¹ If you have diabetes, the question is often not how to get it but whether your diabetes team should be the ones prescribing it. Tell your prescriber and your usual diabetes team about any treatment so care stays joined up.

Honest limits apply too. The licence and our assessment still involve a review of your medical history and current medicines, and some people will be told it is not suitable. If that happens with us, a declined consultation is refunded automatically in full. For wider context, the page on getting diabetes medication for weight loss walks through the same decision from another angle.

If you are unsure which group you fall into, a short conversation with your GP is a sensible first step, and you can still start the free consultation here to see whether the private route is suitable for you.

06 · NHS route in detail

The NHS route: what to expect

The NHS route works, but it is gradual, and your own wait depends on which group you fall into. Mounjaro is available on the NHS, but access is being phased in over several years.⁶ Rather than a single launch date for everyone, the rollout reaches people in stages, with the highest-need groups first.

NICE recommends Mounjaro for adults with a BMI of at least 35 plus at least one weight-related condition.⁴ The primary-care rollout began in June 2025, initially for people with a BMI of 40 or above and four or more qualifying conditions. Full rollout is expected to take years. The NHS has its own guide to the medicine, covering its use for type 2 diabetes and obesity.⁵

To start, book an appointment with your GP and ask whether you are in a group currently being offered treatment locally. Bring your height and weight, a list of your current medicines, and any weight-related conditions you have been diagnosed with, such as high blood pressure, high cholesterol, sleep apnoea or prediabetes. If you have type 2 diabetes, your diabetes team is also a natural contact.

Questions worth asking at that appointment:

• Am I in a group that is currently being offered treatment in my area?
• If not yet, can I be put on a list or reviewed again later?
• What lifestyle or weight-management support is available alongside treatment?
• How will my response be reviewed?

NHS prescribing for weight management also comes with lifestyle support, and treatment is used alongside a reduced-calorie diet and increased physical activity.¹ Wegovy is a different medicine; NHS access to Wegovy runs through specialist weight-management services, so ask your GP.

If you do not meet the current NHS group, you are not out of options, and you are not doing anything wrong. Many people who meet the licensed criteria choose regulated private treatment rather than waiting, and some use it while waiting for NHS access. If you stay with the NHS, the prescription charge in England is £9.90 per item for those who pay, where charges apply to the medicine concerned.

Whichever route you take, keep your GP informed about any weight-management medicine you are taking, so your records and any other treatments stay consistent. That is good practice whether the medicine came from the NHS or a private pharmacy. Our weight loss treatments overview shows how the options sit together.

07 · The private route

The private route: how a regulated online pharmacy works

A regulated online pharmacy gives you the same prescription-only medicine through a clinical process, and can be quicker than waiting for NHS access. EverydayMeds is a GPhC-registered UK online pharmacy (registration 9012878), and you can check any pharmacy's registration yourself on the public register.¹² We supply Mounjaro through official LillyDirect supply, direct from Eli Lilly's UK distribution, as genuine KwikPens, with all six doses stocked from 2.5mg to 15mg.

The process starts with a short free consultation. There is no charge and no obligation. A GPhC-registered prescriber reviews your answers, and this is a clinical review, not a scoring script. If the medicine is suitable, it is dispensed by our registered pharmacy. Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full.

Delivery is free next-day tracked delivery by DPD in discreet, temperature-controlled packaging. Orders placed by 3pm are dispatched the same day. Saturday delivery is available for £14.99. Needles, a sharps bin and injection guidance are included with every order.

Costs are straightforward. Your first 2.5mg pen costs £129.99 with code FIRST40 (standard price £169.99). Every later order is £25 off the standard price, and you can pay by Visa, Mastercard, Klarna or pay-monthly options. There are no subscriptions, and repeat orders re-check suitability rather than shipping automatically.

Aftercare is part of the service. Ongoing monthly reviews, dose-titration and follow-up assessments are handled by the prescribing team, with side-effect support. There is also a free companion app, GLPTrackr, for tracking your journey on iOS and Android. We have supported over 100,000 customers, which describes how many people we have served, not how well treatment works for any individual.

Reading about price? Across the UK pharmacies we track, our own index checked 10 October 2026 shows the cheapest and dearest Mounjaro pens at £143.96 and £339.00 per month across all doses and providers. The cheapest and dearest 2.5mg starting pens are £143.96 and £179.99. For the same dose, the gap between providers ranges from £27 to £41. Compare the whole package rather than the headline price: clinical review, supply source, delivery and aftercare.

You can begin at any time from the Mounjaro pen page. If anything on the consultation is unclear, our support team is on 0333 207 0413 Monday to Friday, 9am to 5pm, or at support@everydaymeds.co.uk.

08 · Dose ladder and results

The dose ladder and realistic results

Everyone starts on 2.5mg once a week, and the dose rises slowly. This starting dose is about letting your body adjust, not about weight loss itself. After at least 4 weeks the dose increases to 5mg, and can then step up by 2.5mg at a minimum of 4-week intervals (7.5mg, 10mg, 12.5mg) up to a maximum of 15mg weekly, depending on how you respond and tolerate it.¹ Many people settle at a maintenance dose of 5mg, 10mg or 15mg. Higher is not automatically better, and your prescriber guides the pace.

What do the trials show? 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. Treatment works alongside a reduced-calorie diet and increased physical activity, not instead of them.

Other trial figures 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% of their body weight.² As a worked example only, for someone starting at 100 kg, 15% is about 15 kg and 20.9% is about 21 kg. Trial averages do not predict your own result.

Pace matters as much as the numbers. Weight loss on Mounjaro is gradual by design. The first weeks on 2.5mg are an adjustment phase and losses are usually modest. Most measurable progress builds from 5mg onward, month by month. Trials measured results at 72 weeks, so think in months, not days, and judge progress by trend rather than individual weigh-ins.¹

Experiences in the first weeks differ widely. Some people notice appetite change and early loss in week one, others feel little until a higher dose, and both are normal. Early loss includes water weight. Mild nausea, altered appetite and tiredness in the first days after each injection are the commonest early effects and usually settle.¹³

Treatment response is reviewed by your prescriber. If you have lost less than 5% of your starting weight after 6 months on the highest dose you can tolerate, your prescriber will discuss whether continuing or stopping is right for you.¹

09 · Year cost planning

Planning the cost over a year

The total cost depends on the dose you settle at, because each dose has its own standard monthly price. These figures are standard prices, before discounts. A new customer's first order is £40 less and every later order is £25 less.

For maintenance doses between these, use the monthly price: 7.5mg is £279.99, 10mg is £290.99 and 12.5mg is £319.99. These are one-pen prices, not year costs.

Why do the totals matter for "how to get it"? Because the first pen is only the start. Your first 2.5mg pen costs £129.99 with code FIRST40, but the 2.5mg dose is a starting step, not a long-term one. The total you plan for is the titration plus your maintenance dose. A weekly view helps too: 2.5mg works out at £42.50 per week, 5mg at £54.75, 7.5mg at £70.00, 10mg at £72.75, 12.5mg at £80.00 and 15mg at £82.50, all at standard prices.

Is the discount a one-off? The new-customer discount applies to the first order at any dose, including people switching to us at a higher dose. Switching at 15mg, your first order is £289.99. After that, an automatic £25 reorder discount applies to every future order (code DOSE25).

Compare carefully. Across the UK pharmacies we track (checked 10 October 2026), Boots' lowest and highest Mounjaro dose prices are £179.00 and £339.00 per month, and the cheapest and dearest Mounjaro pens across all doses and providers are £143.96 and £339.00. The gap between providers for the same dose ranges from £27 to £41.

Pharmacy sell prices vary because of confidential discounts.

Flexible payment can spread the cost. We offer Klarna and pay-monthly options, with no subscriptions, and your prescriber reviews each repeat order rather than shipping automatically. For a longer cost discussion, see the guide on monthly cost for the diabetes weight loss drug.

10 · Safety and supply

Safety, counterfeits and where not to buy

The safest way to get this medicine is through a regulated pharmacy that requires a consultation and a prescription. Counterfeit and unlicensed weight-loss injections have been the subject of MHRA alerts, and the MHRA also runs the Yellow Card scheme for reporting side effects.⁷ Treat any seller offering to supply without a consultation or prescription as a warning sign, and any seller promising specific results the same way.

Check the pharmacy. Every UK pharmacy that sells medicines online should appear on the GPhC public register, which you can search by name or number.¹² Ours is registration 9012878. Check that the pen arrives sealed, labelled and in cold-chain packaging, and that what you receive matches your prescription. Our Mounjaro is supplied via official LillyDirect supply as genuine KwikPens.

Know how the medicine is used. Mounjaro is injected under the skin once a week, on the same day each week, at any time of day, with or without food. Licensed injection sites are the stomach area (at least 5cm from the belly button), the front of the thigh, or the back of the upper arm if someone else gives the injection. Rotate the site with each dose. Each KwikPen contains four weekly doses.¹³

Know the missed-dose rule. If you miss a dose, take it as soon as you can within 4 days (96 hours) of the scheduled time, then carry on with your usual day. If more than 4 days have passed, skip the missed dose entirely and take the next one on your normal day. Never take two doses within 3 days of each other. You can change your injection day as long as at least 3 days (72 hours) have passed since your last dose.¹³

Storage is simple. Keep pens in a fridge at 2–8°C and never freeze them. Once in use, a pen can be kept out of the fridge not above 30°C for up to 30 days, after which it should be discarded. Keep the cap on to protect it from light, and never use a pen that has been frozen.¹³ If you travel, carry pens in hand luggage, ideally in a cool bag with the prescription label or a copy of your prescription. If an unopened pen has been out of the fridge, check with the pharmacy before using it.

Report concerns. If you notice a new symptom, discuss it with your prescriber, and you can report any suspected side effect through the Yellow Card scheme.¹⁹ Mounjaro is a prescription-only medicine, supplied only after an online consultation reviewed by a GPhC-registered prescriber, and individual results vary. This page is information, not a substitute for medical advice.

11 · Other drugs people ask about

Metformin, Ozempic and other "diabetes drugs" people ask about

Several different medicines get called diabetes drugs, so it is worth separating them. For questions like how much metformin it takes to lose weight, or how quickly a given amount comes off on Ozempic, your prescriber is the right person to ask.

Metformin is a long-established diabetes medicine. Questions about whether it helps with belly fat, how it feels, or what happens if you eat sugar while taking it are best answered by your prescriber or pharmacist, who know your own medicines and history.

Ozempic and Wegovy both contain semaglutide, a single-action GLP-1 medicine. Mounjaro differs because it activates two gut-hormone receptors, GIP and GLP-1.¹ Wegovy's licensed dose ladder runs 0.25mg, 0.5mg, 1mg, 1.7mg and 2.4mg once weekly, stepping up after at least 4 weeks and reaching the 2.4mg maintenance dose from week 17.¹⁸ Ozempic is licensed for type 2 diabetes only, and it is not a UK weight-loss medicine; the licensed weight-management options are Mounjaro and Wegovy. Which suits you depends on your history and your prescriber's advice.

Liraglutide (Saxenda, and products such as Erly) is a daily injection supplied at 6mg per millilitre, unlike once-weekly Mounjaro and Wegovy.

If you take insulin or a sulfonylurea, doses may need adjusting because of low blood sugar risk, so tell your prescriber and your diabetes team before starting. Mounjaro slows stomach emptying, which can reduce how well oral contraceptive pills are absorbed.⁷ The SmPC advises switching to a non-oral method, or adding a barrier method (such as condoms), for 4 weeks after starting Mounjaro and for 4 weeks after each dose increase.¹ Mounjaro must not be used during pregnancy, and it should be stopped at least one month before trying to conceive. If you become pregnant during treatment, stop the medicine and tell your prescriber promptly.

Supplements sold as "natural" alternatives are not equivalent. They are low-cost products with no clinical oversight, dosing is not standardised, and dramatic weight-loss claims made for them should be treated sceptically. For a historical contrast, see the page on the fen-fen weight loss drug.

12 · Serious side effects

Serious side effects: when to get help straight away

Serious side effects are uncommon but need urgent attention. Seek immediate medical help for: severe, persistent stomach pain that may spread to your back, with or without vomiting (possible pancreatitis); pain in the upper right abdomen, fever or yellowing of skin/eyes (possible gallbladder problems); or signs of a severe allergic reaction such as swelling of the face or throat and difficulty breathing. If you take insulin or a sulfonylurea alongside Mounjaro, watch for low blood sugar (shakiness, sweating, confusion) — your prescriber may need to adjust those medicines.¹