Weight Loss Treatment Price Comparison UK

Compare current weight loss treatment costs across registered UK pharmacies. PenCompare independently checks published prices, compulsory fees, pharmacy registration and the date each price was verified, helping you compare providers on a like-for-like basis.

All prescription weight-management treatments require an appropriate clinical assessment and approval from a qualified prescriber.

GPhC / PSNI pharmacy checks
Independent price checks
Complete-cost comparison
Affiliate commission does not influence organic rankings
Current Price Snapshot
Mounjaro 2.5mg
Lowest complete cost
£113.05
/ month
£229.00
Wegovy 0.25mg
Lowest complete cost
£79.99
/ month
£205.00
Saxenda 5 Pens
Lowest complete cost
£210.00
/ month
£235.00
Compare All Providers & Doses →
Listed prices from verified UK pharmacies, excluding consultation and delivery fees. The struck-through amount is the highest price recorded across compared pharmacies, not a previous price. Last checked August 24, 2026.

Compare Like-for-Like Treatment Costs

A low advertised starter price does not always mean a provider has the lowest overall cost.

Consultation charges, prescription fees, mandatory delivery and changes in price between dose levels can all affect what you actually pay.

PenCompare is designed to make those differences easier to see.

Choose a medication and dose to compare current provider costs side by side.

Compare GLP-1 prices

The complete cost of weight-loss medication, including every compulsory fee, so you can compare pharmacies like for like.

Medication
Dose

Pharmacy Treatment & dose Complete cost Action
Checking latest prices…

Prices are indicative and change frequently. Confirm the final total at the pharmacy checkout before paying.

Prices change frequently. Check the provider’s final price and terms before proceeding with a consultation.

How PenCompare Works

We compare the financial and provider information surrounding private prescription weight-management treatments. We do not decide which medicine is appropriate for you.

Pharmacy registration

We check the dispensing pharmacy against the GPhC register in England, Scotland and Wales, or the PSNI register in Northern Ireland, before it appears in a comparison.

Dose-specific, complete cost

Prices are recorded at individual dose levels and totalled with every compulsory fee — consultation, prescription and delivery — on the same basis for every provider.

Independent ranking

Providers are ordered by complete cost alone. Affiliate commission has no part in the ranking query.

Regular price checks

Prices are checked regularly, and every listing shows the date it was last verified so you can judge how current a figure is.

Why Comparing the Headline Price Is Not Enough

Before comparing providers, check:

The medication
The dose
Medicine price
Compulsory consultation or prescription fees
Mandatory delivery
Whether the price is introductory or ongoing
When the price was last verified
Current Price Spread — Mounjaro 2.5mg
Lowest complete cost
Mounjaro 2.5mg (4-week supply)
£113.05
Highest complete cost
Mounjaro 2.5mg (4-week supply)
£229.00
£115.95
Difference
Based on currently verified provider records for the same treatment and dose. This is a price difference, not a guaranteed saving. Your dose may change during treatment and provider prices can change at any time. Prices last checked: August 24, 2026.

About PenCompare

PenCompare is an independent UK comparison website focused on pricing transparency for private prescription weight-management services.

We compare publicly available provider information including treatment prices, compulsory fees, delivery terms, pharmacy registration and verification dates.

PenCompare does not prescribe, sell or dispense medicines. Our role is to organise provider information so that people who have chosen to research private treatment costs can make more informed comparisons before visiting a provider.

Read about PenCompare →

Independent Rankings

The order of PenCompare’s organic comparison results is not determined by affiliate commission or advertising spend. Providers are ranked according to the rules set out in our published methodology. Where sponsored placements are offered, they are kept separate from organic comparison rankings and clearly labelled.

Read how our rankings work →


Pharmacy Verification

We check the pharmacy behind every provider. Before a pharmacy is included in our comparison data, we check its registration against the appropriate UK pharmacy register.

Great Britain

Checked against the General Pharmaceutical Council (GPhC) register.

Northern Ireland

Checked against the Pharmaceutical Society of Northern Ireland (PSNI) register.

What We Record

Pharmacy registration

The pharmacy associated with each listing is checked against the relevant register.

Price verification date

Comparison records show when pricing was last checked.

Compulsory costs

We identify compulsory charges that affect like-for-like comparisons where this information is publicly available.

Delivery information

Delivery charges and relevant service information are recorded where available.

Compare Mounjaro Prices

View current Mounjaro prices across UK providers by dose, from 2.5 mg through to higher prescribed strengths.

Compare Mounjaro prices →

Compare Wegovy Prices

Compare current Wegovy provider prices by prescribed dose and review compulsory provider charges.

Compare Wegovy prices →

Compare Saxenda Prices

Review current Saxenda pricing and provider information.

Compare Saxenda prices →

Understanding The Treatments

Price comparison should only take place after considering whether a treatment is clinically appropriate. PenCompare provides separate educational resources explaining the medicines we track.

Why Use PenCompare?

PenCompare is not a pharmacy, clinic or prescriber. Our comparison results are ranked by cost, not commission.

Frequently asked questions

No. PenCompare is an independent comparison website. We do not prescribe, sell or dispense medication. If you choose to visit a provider through PenCompare, the consultation, prescribing decision, payment and supply take place directly with that provider.

Where PenCompare displays a complete cost, it includes the medicine price plus compulsory charges identified under our published methodology, such as mandatory consultation, prescription or delivery fees where applicable. Optional extras are not included. Always confirm the final amount directly with the provider before paying.

PenCompare reviews provider pricing on a rolling basis. Each price record displays the date it was last verified, allowing users to see how current the information is. Where a price has not been checked recently or can no longer be verified, this is clearly indicated in the comparison.

We check the pharmacy associated with each listing against the General Pharmaceutical Council register for Great Britain or the Pharmaceutical Society of Northern Ireland register where applicable. A registration check confirms that the pharmacy appears on the relevant register. It does not constitute an endorsement of the provider by PenCompare or the regulator.

No. Affiliate commission does not determine the order of PenCompare’s organic comparison results. Our ranking methodology is published separately. Any sponsored placement should be clearly identified and separated from organic rankings.

Providers can set different medicine prices and may structure consultation, prescription and delivery charges differently. Prices can also differ between dose strengths. This is why PenCompare compares the same treatment and dose and identifies compulsory costs where possible.

PenCompare does not sell medication. Selecting a provider takes you to that provider’s own website, where you can review its terms and, where appropriate, complete a clinical consultation. A prescription-only weight-management medicine should only be supplied after approval by an appropriately qualified prescriber.

Compare Current UK Treatment Prices

Compare providers by medication, dose, compulsory cost, verification date and pharmacy registration.

Price should not determine whether a medicine is suitable for you. Treatment decisions should be made with an appropriately qualified healthcare professional.

Affiliate Disclosure

PenCompare may receive a commission if you visit a provider through certain links and subsequently make a purchase. This does not affect the price you pay and does not determine the order of our organic comparison results.

Read how PenCompare is funded →

Medical Information

PenCompare provides cost-comparison and educational information and does not provide medical advice, diagnosis or treatment recommendations. Prescription weight-management medicines require an appropriate clinical assessment and prescription. Always speak to an appropriately qualified healthcare professional before starting, stopping or changing treatment.