Your Mounjaro price guide · October 2026
What Percentage of People Are on Weight Loss Drugs? (October 2026)
There is no single reliable percentage of people on weight loss drugs, because estimates depend on the country, the survey and whether they count only obesity medicines or also diabetes prescriptions. Current as of October 2026.
One pen. Four weekly doses.
New customers£40 off your first order with code FIRST40. Standard price £169.99.
From your first consultation to ongoing care.
- GPhC-registered UK pharmacy
- Prescriber assessment
- Temperature-controlled delivery
- Advice from our pharmacy team
Compare UK Mounjaro Prices
Prices checked 11 October 2026
| Provider | 2.5mg | 5mg | 7.5mg | 10mg | 12.5mg | 15mg | Notes |
|---|---|---|---|---|---|---|---|
 £40 off first order | £129.99First orderReorders £144.99 | £178.99First orderReorders £193.99 | £239.99First orderReorders £254.99 | £250.99First orderReorders £265.99 | £279.99First orderReorders £294.99 | £289.99First orderReorders £304.99 | Consultation and next-day tracked delivery included |
| Boots Online Doctor | £179.00 | £199.00 | £259.00 | £299.00 | £319.00 | £339.00 | Free click & collect; cold-chain home delivery chargeable |
| Asda Online Doctor | £148.97 | £188.97 | £248.97 | £278.97 | £287.47 | £298.97 | Refrigerated delivery from £4.50; free click & collect |
| MedExpress | £179.99 | £189.99 | £249.99 | £279.99 | £299.99 | £309.99 | Delivery £2.90 to £3.95; new-customer discount at checkout |
| Simple Online Pharmacy | £169.00 | £199.99 | £259.99 | £279.99 | £299.99 | £319.99 | Delivery £4.99 per order |
| Oxford Online Pharmacy | £143.96 | £188.96 | £248.96 | £278.96 | £288.96 | £309.95 | Free consultation; cold delivery £5.49 |
| Chemist4U | £148.00 | £188.00 | £248.00 | £278.00 | £288.00 | £298.00 | Consultation included; free temperature-controlled delivery |
| Chemist Click | £163.99 | £173.99 | £232.99 | £259.99 | £279.99 | £299.49 | Cold-chain delivery charged; £20 off with code |
| Click Pharmacy | £169.99 | £189.99 | £239.99 | £269.99 | £289.99 | £299.99 | Free assessment; delivery £3.50 to £7.95 |
| Medino | £147.99 | £169.99 | £249.99 | £269.99 | £299.99 | £319.99 | Consultation and delivery included |
Prices collected weekly from each provider's published price list.
A quick overview
What to know
before you start.
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Estimates of how many adults take a weight loss drug vary by country and survey method.
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Headline percentages often mix diabetes and obesity prescriptions, or US and UK data, so compare them cautiously.
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Stopping is common for several reasons, including side effects, cost and access.
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Trial results describe averages; individual results vary, and some people lose less than others.
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NHS access is being phased in over several years, so many UK adults look at regulated private treatment.
In this guide
01 · The honest answer
So what share of people actually use them?
Any exact percentage you see depends on three choices the headline rarely explains.
- Who is counted: all adults, adults with obesity, or only people with a prescription.
- Which drugs: weight management products only, or also diabetes medicines used for the same purpose.
- Which country: the US, UK and Canada have different prescribing, funding and supply.
Our guide to the share of people on GLP-1 medicines goes further into the data.
02 · Is this relevant to you?
What this means for your own decision
Population statistics say little about whether a medicine suits you. Suitability depends on your BMI, health conditions and other medicines. Mounjaro is available on the NHS, but access is being phased in over several years.4 If you want to explore private treatment, our weight loss clinic explains the process, and the Mounjaro pen page shows live prices, with a free consultation reviewed by a GPhC-registered prescriber.
Related guide: How many people in uk are on weight loss injections.
Related guide: How many people are on weight loss drugs uk.
03 · Do they work for everyone?
What share of people do not lose weight on these drugs?
Not everyone responds equally, and trials report the proportion reaching each threshold rather than a single failure rate. In SURMOUNT-5, 751 adults took tirzepatide or semaglutide 2.4mg for 72 weeks. At least 10% of body weight was lost by 81.6% on tirzepatide vs 60.5% on semaglutide; at least 15% by 64.6% vs 40.1%; at least 20% by 48.4% vs 27.3%; at least 25% by 31.6% vs 16.1%.15 Average loss was 22.8 kg vs 15.0 kg.15
Those are trial averages and do not predict your own result. Our page on who Mounjaro does not work for covers this in more depth.
04 · Why people stop
Why do people stop taking weight loss injections?
People stop for a mix of reasons: side effects, cost, access, reaching a goal, or a change in health. In STEP 1, gastrointestinal side effects were reported by 74.2% of people on semaglutide 2.4mg, compared with 47.9% on placebo.9 7.0% stopped treatment because of side effects, compared with 3.1% on placebo.9
05 · After stopping
Will I regain weight if I stop?
Treatment is used alongside a reduced-calorie diet and increased physical activity, and those habits are what you carry forward if you stop.1 Mounjaro manages weight; it does not cure the biology behind it. 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, with diet and activity habits ready to carry the load.
If you do stop Mounjaro, the medicine takes roughly four to five weeks to clear your system, and nothing needs doing while it clears.
06 · Safety questions
Do weight loss drugs harm your body?
Like all medicines, Mounjaro can cause side effects, and most are digestive. The most common — affecting more than 1 in 10 people — are nausea, diarrhoea, vomiting, constipation and abdominal discomfort. Side effects are most likely when starting treatment or moving up a dose, and for most people they ease within days to a few weeks as the body adjusts.13
Tell your prescriber about any new or lasting symptom, and you can report suspected side effects through the Yellow Card scheme.19 If you are curious about older stimulant-style products, see amphetamine drugs for weight loss; they are very different from today's medicines.
07 · 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
How ordering works
How ordering works at EverydayMeds
Three steps, with our pharmacy team alongside you.
Step 1: Online consultation — 5–10 minutes
Complete a confidential health questionnaire covering BMI, medical history and current medication. No payment is taken until you're approved.
Step 2: Prescriber review — usually same day
A UK registered prescriber checks your suitability against the licensed criteria (BMI ≥30, or ≥27 with a weight-related condition) and contraindications, and confirms your starting dose.
Step 3: Next-day tracked delivery
Dispensed by our GPhC-registered pharmacy in temperature-controlled packaging with needles and a sharps bin included. Orders approved by 3pm for next-day tracked delivery.
Prescription and dispatch follow clinical approval. Confirm current delivery options when ordering.
Afterwards you're not on your own: dose-change reviews are built in before each step up, our pharmacist team is available for side-effect questions, and repeat orders re-check suitability rather than auto-shipping.
Your questions, answered
Mounjaro price UK — frequently asked questions
Answers to common questions about Mounjaro prices, NHS access and ongoing treatment.
Ask our pharmacy teamWhat percentage of people are on weight loss drugs?
Why do so many people quit Ozempic?
What percentage of people don't lose weight on GLP-1 medicines?
Do weight loss drugs harm your body?
Is Mounjaro available on the NHS?
Clinically reviewed by
Mahommed Zunaid Ayub Patel
Superintendent Pharmacist
Accountable for the safe running of our registered pharmacy — from dispensing checks to delivery.
GPhC registration no. 2217101 · check the GPhC register
- Reviewed
- Last updated
- Next review
How we source our information
How we source our information: every clinical statement on this page is drawn from the sources below. Our prices are shown live from our pharmacy's product listings, and competitor prices show the date they were collected.
Sources — 6 references
- Mounjaro KwikPen — Summary of Product Characteristics (SmPC), electronic medicines compendium (EMC), 2026
- NICE TA1026 — Tirzepatide for managing overweight and obesity, including the practical prescribing guide
- Wilding JPH, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1). N Engl J Med 2021;384:989–1002
- Mounjaro KwikPen — Patient Information Leaflet (emc)
- Aronne LJ, et al. Tirzepatide as Compared with Semaglutide for the Treatment of Obesity (SURMOUNT-5). N Engl J Med 2025
- MHRA Yellow Card scheme — report a side effect
EverydayMeds is operated by OVIO Ltd · GPhC-registered pharmacy 9012878 · Registered premises, Leicester · Superintendent Pharmacist: Mahommed Zunaid Ayub Patel