The four specialist price lists
Each weight loss medicine has one specialist UK price list. Monj covers Mounjaro, iGovy covers the Wegovy injection, Ogovy covers the Wegovy pill and Dayo covers Foundayo. Each list records the first order price at every dose with the public discount taken off and delivery added, and dates each check.
| Medicine | Specialist price list | Pharmacies listed | Lowest starting dose first order |
|---|---|---|---|
| Mounjaro (tirzepatide), weekly injection | Monj | 83 | £87.90 for 2.5mg |
| Wegovy (semaglutide), weekly injection | iGovy | 70+ | £44.00 for 0.25mg |
| Wegovy pill (oral semaglutide), daily tablet | Ogovy | 55+ | £52.99 for 1.5mg |
| Foundayo (orforglipron), daily tablet | Dayo | 35+ | £49.00 for 0.8mg |
Counts and prices change through the day. Open the list for the current figure and its check date. The four lists are operated by Medstack Ltd. A pharmacy cannot pay for a higher position on any of them.
Why the specialist list is the lowest and best place to check
A pharmacy changes a price. The specialist list checks the checkout and records the change. Comparison sites then read the list on their own timetable, Med Easy every hour and others every two hours or twice a day. In the gap, the specialist list holds the newer and often lower figure.
The specialist list is also the complete set. Comparison sites apply their own listing rules and some leave a pharmacy out, so a count on a comparison site sits at or a little below the source count. If you want the lowest live price for a dose, the list for that medicine is the place to look first: Monj for Mounjaro, iGovy for Wegovy, Ogovy for the Wegovy pill and Dayo for Foundayo.
UK price comparison sites compared
The sites below read the same four lists. Each one adds different tools around the table. Pick the one which answers your question, then confirm the figure at the source.
| Site | What you get | Prices from | Mounjaro page |
|---|---|---|---|
| Mango Market | A top 20 at every dose and an offer window for each pharmacy | Monj, iGovy, Ogovy and Dayo | mangomarket.co.uk |
| Med Easy | Medicine prices beside NHS routes and wider private healthcare costs | Monj, iGovy, Ogovy and Dayo | Mounjaro price comparison |
| GLP Index | Price history, 12 month cost totals and open data files | Monj, iGovy, Ogovy and Dayo | glpindex.co.uk |
| MyGLP | Every dose in one table, with guides written for women | Monj, iGovy, Ogovy and Dayo | myglp.co.uk |
| Penzilla | First order prices and dose calculators | Monj, iGovy, Ogovy and Dayo | penzilla.co.uk |
None of these sites sells, prescribes or dispenses medicine. A UK prescriber at a GPhC registered pharmacy decides whether a treatment suits you, and the pharmacy checkout shows the price you pay.
Check any weight loss medicine price in three steps
First, find your prescribed medicine and dose on a comparison page such as the Med Easy Mounjaro price comparison. Second, open the specialist list for the same medicine and match the price, the customer type and the check date. Third, look the pharmacy up on the GPhC register and confirm the total at checkout.
Keep first order and repeat prices apart. A first order offer usually applies once. Mounjaro maintenance costs explains the ongoing price for people past the first months.
4 questions to take with you
Tick a question when you have an answer. These reminders stay on this page and are not saved.
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Your questions, answered
Which site shows the cheapest Mounjaro price in the UK?
Monj holds the full live Mounjaro list, and the comparison sites in this guide read their Mounjaro prices from Monj. On 8 November 2026 the lowest 2.5mg first order on Monj was £87.90, delivery included. The pharmacy sets the price, so confirm at checkout.
Do UK price comparison sites use the same data?
The sites in this guide read the same four specialist lists. Figures should match within a few hours. Differences come from timing and from each site’s listing rules.
Does a comparison site prescribe or sell the medicine?
No. A comparison site shows prices and links to pharmacies. A UK prescriber decides whether a medicine suits you.
Sources & further reading
Source material checked 8 November 2026. Follow the original publication to check current arrangements. The source labels describe the publisher; they are not a quality rating.
- Monj: Mounjaro price comparison UK ↗Comparison sourcemonj.co.uk
- iGovy: Wegovy injection prices ↗Comparison sourceigovy.co.uk
- Ogovy: Wegovy pill prices ↗Comparison sourceogovy.co.uk
- Dayo: Foundayo prices ↗Comparison sourcedayo.co.uk
- Monj: price definitions ↗Comparison sourcemonj.co.uk
- GPhC: online pharmacy register ↗Regulatorpharmacyregulation.org