List of Prescription Weight Loss Drugs in the UK (October 2026)

01 · The list

Which prescription weight loss drug fits you?

The right drug depends on your BMI, your health conditions, your other medicines and how you want to take it, and only a prescriber can decide that.

Our GLP-1 drugs list for weight loss and the guide to prescription weight loss medication names go deeper on brand and generic names.

02 · Cost

What Mounjaro costs to plan for

Mounjaro is the medicine we supply, so it is the one we can price. The standard price of one pen (four weeks) is £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. A new customer gets £40 off their first order at any dose with code FIRST40, and every later order gets an automatic £25 off (code DOSE25). The Mounjaro pen page shows the live price for each dose.

These totals are at standard prices. A new customer's first order is £40 less, and every later order is £25 less. If you settle at 7.5mg, 10mg or 12.5mg, your monthly cost is that dose's price: £279.99, £290.99 or £319.99. Across the UK pharmacies we track, the dearest Mounjaro pen costs £339.00 and the cheapest £143.96 (checked 11 October 2026).

03 · Our service

What you get when you order with us

EverydayMeds is a GPhC-registered UK online pharmacy (registration 9012878). Mounjaro comes through official LillyDirect supply, sourced directly from Eli Lilly, so you receive genuine KwikPens. The consultation is free and reviewed by a GPhC-registered prescriber, not a scoring script. Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full.

Orders placed by 3pm are dispatched the same day, with free next-day tracked delivery in temperature-controlled packaging. Needles, a sharps bin and injection guidance come with every order. You can pay by Visa, Mastercard, Klarna or pay-monthly options, with no subscription lock-in. Start your free consultation when you are ready, or use buy Mounjaro for the full ordering page.

04 · How the drugs are grouped

How the prescription weight loss drugs are grouped

Prescription weight loss drugs fall into a few families, and knowing the family tells you how a drug is taken and what it targets.

The dual-action family has one member here: Mounjaro (tirzepatide). It 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 That dual action is what distinguishes it from single-action GLP-1 medicines such as semaglutide.¹

The single-action weekly family is Wegovy (semaglutide). Its pens come in 0.25mg, 0.5mg, 1mg, 1.7mg and 2.4mg, and the dose steps up after at least four weeks to reach the 2.4mg maintenance dose from week 17.¹⁸ Liraglutide, sold as Saxenda, belongs to the GLP-1 group too, but it is a daily injection supplied at 6mg per millilitre, unlike once-weekly Mounjaro and Wegovy.

The oral family covers Wegovy tablets and Foundayo (orforglipron). The product page shows current Wegovy tablet prices. Orlistat is the older oral option; figures vary and your prescriber can advise.

Why does the family matter? Practical reasons come first. A weekly pen suits people who dislike daily routines, a daily injection gives more frequent adjustment points, and a tablet suits those who prefer to avoid needles. Your prescriber weighs these preferences against safety.

Every drug here is prescription-only. You cannot lawfully buy any of them without an assessment, which is why a seller offering to supply without a consultation or prescription is a warning sign. Our guide on whether you need a prescription for weight loss drugs explains this in more depth.

All of these medicines are intended to be used alongside a reduced-calorie diet and increased physical activity. None replaces them. Think of the drug as a tool that makes the diet easier to follow, not a substitute for it. Whichever family you choose, the prescriber sets the dose and reviews it as you go.

05 · Mounjaro (tirzepatide)

Mounjaro (tirzepatide) in detail

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 pre-filled multi-dose pen (KwikPen) in six strengths: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg and 15mg.¹

Tirzepatide is the first treatment of its kind to activate both GIP and GLP-1 receptors. In practice, most people feel fuller sooner and less hungry between meals, which supports a reduced-calorie diet.¹

Treatment begins at the lowest strength and your prescriber moves you up. If you step up after 4 weeks on each dose, your first four pens (2.5mg to 10mg) cost £959.96 at standard prices, and your first order is £40 less with code FIRST40. Not everyone needs the highest strength, and the right maintenance dose is a decision for you and your prescriber.

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 This is worth knowing if you ever plan to stop.

Because the pens are multi-dose and weekly, the routine is simple once learned. Needles, a sharps bin and injection guidance come with every order, and the pen's own instructions tell you how to inject. Our prescribing team handles monthly reviews, dose-titration and follow-up assessments, and offers side-effect support. Repeat orders re-check suitability, and nothing ships automatically.

Standard prices run from £169.99 at 2.5mg to £329.99 at 15mg per pen, with £25 off every later order.

Mounjaro is prescription-only and supplied after an online consultation reviewed by a GPhC-registered prescriber. Individual results vary.

06 · Wegovy and semaglutide

Wegovy (semaglutide) and Wegovy tablets

Wegovy is the brand name for semaglutide, a once-weekly injection for weight management. The pens come in 0.25mg, 0.5mg, 1mg, 1.7mg and 2.4mg, and treatment steps up after at least four weeks.¹⁸ You reach the 2.4mg maintenance dose from week 17, which is the licensed maintenance dose for weight management.¹⁸

The ladder runs 0.25mg, 0.5mg, 1mg, 1.7mg, 2.4mg, with at least four weeks at each step before 2.4mg. It gives the body time to adjust before the maintenance dose, and a prescriber supervises each step.

Semaglutide is a single-action GLP-1 medicine, whereas tirzepatide activates two receptors. That is a difference in mechanism, not a verdict on which suits you. Both are licensed treatments, and which suits you depends on your health profile, tolerance and prescriber advice.

Wegovy tablets are an oral form of semaglutide with their own UK product information. For current prices, see the Wegovy tablet details on our weight loss treatments page. If you want a first Wegovy pen price, £99.99 is the first-order price of the starting pen.

On the NHS, access to Wegovy runs through specialist weight-management services; ask your GP.

If you are weighing the two injections, our guide to whether prescription weight loss drugs work sets out what the trial evidence can and cannot tell you. When you check availability for any brand, check it at the time of order, since it can change.

Switching between medicines is a prescriber decision, not a do-it-yourself step. If you are on one drug and considering another, tell the prescriber your current dose and how you have tolerated it so they can advise on a safe starting point.

07 · Saxenda, Foundayo, orlistat

Saxenda, Foundayo, orlistat and other options

Beyond the two weekly injections, UK prescribers can use liraglutide, orforglipron and orlistat.

Liraglutide, sold as Saxenda, is supplied at a concentration of 6mg per millilitre. It is a daily injection, unlike once-weekly Mounjaro and Wegovy. For some people a daily routine is a drawback; for others the frequent dosing is simply what they are used to from other treatments. Efficacy figures vary, and your prescriber can advise.

Foundayo (orforglipron) is a tablet with its own UK product information. If you are curious, our product pages show the current position, and your prescriber can explain how it differs from injections.

Orlistat is an older oral option. Your prescriber can tell you whether it suits your situation.

What about unlicensed or still-in-development medicines? Medicines that are not licensed for UK weight management should not be combined with Mounjaro or used in place of prescribed treatment. Equally, be wary of supplements marketed as natural versions of prescription drugs. They are low-cost supplements with no clinical oversight, and dosing is not standardised. Dramatic weight-loss claims on those products do not make them medicines.

Our longer guide on slimming drugs in the UK explains how these categories differ. Our GLP-1 drugs list covers the injectable and oral GLP-1 group in more detail.

The rule for every item here is the same: use a regulated UK pharmacy, accept an assessment by a prescriber, and expect a plan that includes diet and activity. If a source promises specific results or offers to supply without a consultation or prescription, walk away.

Finally, a medicine being on this list does not mean it is right for you. The prescriber may decline an order, and if so you are refunded automatically. That safety net is part of how a regulated service should work.

08 · Who is eligible

Who can be prescribed Mounjaro for 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.¹ Qualifying conditions include high blood pressure, high cholesterol, obstructive sleep apnoea, cardiovascular disease, prediabetes and type 2 diabetes.¹

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 for you.¹ This assessment is the reason you cannot simply buy it.

Let us make that concrete. A BMI of 31 with no other conditions sits in the licensed range. A BMI of 28 with high blood pressure also qualifies. A BMI of 28 with no weight-related condition falls outside it. These are the licence thresholds, and the prescriber still decides whether treatment is appropriate in your case.

The consultation asks about your health, other medicines and history. Some information can change the answer, so be accurate. If a medicine could interact, the prescriber will say so. For example, Mounjaro slows stomach emptying, which can reduce how well oral contraceptive pills are absorbed, and if you use insulin or sulfonylureas, your doses may need adjusting because of the risk of low blood sugar. 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 Report any new symptom to your prescriber, and you can report suspected side effects through the Yellow Card scheme.¹⁹

Eligibility for private treatment is not the same as eligibility on the NHS, where thresholds are higher and rollout is phased. Our page on the eligibility criteria for prescription weight loss drugs goes through the checks in detail.

The consultation is free, takes the form of a short health questionnaire, and carries no obligation. A GPhC-registered prescriber reviews it. Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full.

Treatment is for adults. Mounjaro is not a cosmetic quick fix for people at a healthy weight, and the licence reflects that.

09 · NHS versus private

NHS versus private prescribing

Mounjaro is available on the NHS, but access is being phased in over several years.⁴ NICE recommends it for adults with a BMI of at least 35 plus at least one weight-related condition.⁴ The NHS primary-care rollout began in June 2025 with the highest-need groups first, initially BMI 40+ with four or more qualifying conditions.⁶

Full rollout is expected to take years.⁶ That is why many people who meet the licensed criteria choose regulated private treatment rather than waiting. The licence is broader than the NHS's current thresholds: a BMI of 30 or above, or 27 to 30 with a weight-related condition.

Which route suits you? Start with your GP. If you fit a highest-need group, NHS care may be available to you. If you do not, or you would rather not wait, a regulated online pharmacy is the alternative. Neither route is wrong, and the medicine is the same.

For other drugs on this list, NHS access to Wegovy runs through specialist weight-management services; ask your GP.

The NHS prescription charge is £9.90 in England where a charge applies, but it is not relevant to every service. Ask your GP or the service involved what you would pay.

If you go private, the main differences are speed and criteria. You get a prescriber's assessment through a free online consultation, and our prescribing team provides ongoing monthly reviews, dose-titration and follow-up. Many people also use our free GLPTrackr companion app to track their journey on iOS or Android.

For a fuller view of how the NHS describes the medicine, see the NHS guidance on tirzepatide.⁵ Whichever route you pick, tell the new prescriber about any previous weight loss treatment so they have the whole picture.

10 · What trials show

What the trial results show for Mounjaro

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. Individual results vary, and treatment works alongside a reduced-calorie diet and increased physical activity, not instead of them.²

Averages hide a spread. At 72 weeks, 85% of participants on 5mg, 89% on 10mg and 91% on 15mg had lost at least 5% of their body weight.² Half of participants on 10mg and 57% on 15mg lost at least 20% of their body weight.²

Here is a worked example with a starting weight named. For someone starting at 100 kg, 15% is about 15 kg, 19.5% is about 19.5 kg and 20.9% is about 21 kg. The lifestyle-only figure of 3.1% would be about 3 kg. These are straight arithmetic from the trial percentages. They are not a forecast for you, and trial averages do not predict your own result.

They do not tell you how fast you will lose weight. They do not apply to people outside the trial's profile. They do not mean the highest dose is always right: your prescriber balances benefit against tolerance.

Without the diet and activity component, you should not expect the trial result.

What about other drugs? Each has its own trials, with different people, durations and doses, so their results should not be set against these as if head to head. Trial designs differ in population, length and dose, so such comparisons mislead. Where you want a like-for-like view, ask your prescriber. For a broader read, see whether prescription weight loss drugs work.

Finally, treat any website quoting dramatic weight-loss claims with suspicion. The honest message is modest and consistent: these medicines can help, results vary, and they work alongside diet and activity.

11 · Safety and buying safely

Buying prescription weight loss drugs safely

Buy prescription weight loss drugs only from a UK-registered pharmacy that assesses you first. The MHRA publishes counterfeit medicine alerts and runs the Yellow Card scheme for reporting suspected side effects and suspect products.⁷ The GPhC keeps a public register of pharmacies and pharmacy professionals, so you can confirm a seller is genuine.¹² Ours is registration 9012878, and you can check it on the GPhC register.

Red flags are easy to list. A seller offering to supply without a consultation or prescription is breaking the rules. A site that promises specific results is not being straight. A price far below what the market suggests deserves questions: across the UK pharmacies we track, Mounjaro pens range from £143.96 to £339.00 (checked 11 October 2026), and the gap between providers for the same dose runs from £27 to £41.

Our supply is official LillyDirect: Mounjaro direct from Eli Lilly's UK distribution, genuine KwikPens, with all six doses (2.5mg to 15mg) stocked. Delivery is free next-day tracked in discreet, temperature-controlled packaging, and Saturday delivery is £14.99. Dispensed prescription medicines cannot be returned except when faulty, damaged or the wrong item, and you should contact us within 3 days in that case.

How does ordering work? There are three steps. First, complete the free online consultation, a short health questionnaire with no charge or obligation. Second, a GPhC-registered prescriber reviews it, and unsuitable orders are refunded automatically. Third, our registered pharmacy dispenses and dispatches, the same day when you order by 3pm.

If you have questions, support runs Monday to Friday, 9am to 5pm, by email at support@everydaymeds.co.uk, the account portal chat or phone on 0333 207 0413.

After you start, report new symptoms to your prescriber and consider reporting suspected side effects through the Yellow Card scheme.¹⁹ Read the patient information leaflet that comes with the pen too.¹³ For a summary of our service, see Mounjaro from a UK pharmacy.

12 · Stopping and aftercare

Stopping, switching and aftercare

Stopping a medicine is a decision to make with your prescriber, and for Mounjaro there is one fact worth knowing in advance. Tirzepatide has a half-life of about five days, so after a final dose it takes roughly 4–5 weeks to clear the system.¹ There is no way to speed this up, and nothing needs doing while it clears.¹ In SURMOUNT-4, people who stopped tirzepatide after 36 weeks regained on average 14% of body weight over the following year, while those who continued treatment lost a further 5.5% on average. Stopping should always be planned with your prescriber.

That has practical consequences. If you miss a few weeks or decide to stop, the drug does not vanish overnight, and if you restart, tell the prescriber how long the gap was so they can advise on the right dose. Do not restart at a high dose on your own.

Switching between drugs is also a prescriber decision. People often move for reasons of tolerance, preference, supply or cost. Whatever the reason, share your current dose and how you have felt on it. If you are moving to us from another provider at a higher dose, your first order with us is still £40 less at any dose with code FIRST40, and the first-order price of the 15mg pen is £289.99.

Aftercare matters more than most people expect. Medicines on this list work alongside a reduced-calorie diet and increased physical activity, and the habits you build while on treatment are what you carry forward. Our ongoing monthly reviews, dose-titration and follow-up assessments exist to support that, along with side-effect support from the prescribing team.

Repeat orders re-check suitability, so your prescriber reviews your circumstances each time and nothing is auto-shipped. Every future order is £25 off the standard price (code DOSE25), and you can pay by Klarna or pay-monthly options with no subscription.

If you want to track your progress, the free GLPTrackr app helps you log injections, doses and notes. It is a companion tool, not medical advice, and the results you see depend on many factors.

Individual results vary. This page is information, not a substitute for medical advice. When in doubt about any symptom, speak to your prescriber or GP, and consult the patient information leaflet.¹³

13 · 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 Do not use Mounjaro if you are pregnant, and stop it at least one month before trying to conceive. If you become pregnant during treatment, stop the medicine and tell your prescriber promptly.