How Much Does Mounjaro Cost in the UK? 2026 Price Guide

Mounjaro (tirzepatide) is the most popular private weight loss injection in the UK. But with prices varying by up to 40% between providers, it pays to compare before committing.

Here's what Mounjaro actually costs in 2026 — and how to find the best deal.

Price per week

Mounjaro is a once-weekly injection. Most UK providers price it as a 4-week supply (one pen per week), so the monthly price divided by 4 gives you the weekly cost.

| Dose | Typical weekly price | Notes | |---|---|---| | 2.5mg (starter) | £35–55 | First 4 weeks | | 5mg | £38–58 | Escalation | | 7.5mg | £42–62 | Escalation | | 10mg | £48–68 | Maintenance | | 12.5mg | £52–72 | Maintenance | | 15mg | £55–75 | Maximum dose |

What's included in the price?

This varies significantly between providers and has a big impact on total cost:

Usually included:

• The medication itself (1 KwikPen per week)
• Online clinical consultation and prescriber review
• Prescription issuance

Sometimes included:

• Ongoing monitoring and check-ins
• Dose adjustment consultations
• Prescriber access between appointments
• Blood tests

Rarely included:

• Delivery (most charge £3–5 or offer free delivery over a threshold)
• Needle tips (usually included with the pen)

Total cost over 6 and 12 months

Most patients take Mounjaro for 6–12 months initially. Here's what to budget:

| Duration | Low estimate | High estimate | |---|---|---| | 3 months | £420 | £660 | | 6 months | £960 | £1,560 | | 12 months | £2,100 | £3,600 |

These estimates assume dose escalation over the first 4–5 months, then maintenance at 10–15mg.

How to find the cheapest Mounjaro

1. Compare weekly prices, not monthly — some providers quote per-pen, others per-month, others per-course. Weekly price is the fairest comparison.

2. Check what's included — a provider charging £45/week with monitoring and prescriber access may be better value than one charging £38/week with separate consultation fees.

3. Look for discount codes — many providers offer first-month discounts or referral codes. Check our deals page for current offers.

4. Consider flat-rate providers — if you expect to reach maintenance doses (10mg+), providers with a single price across all doses save money long-term.

5. Stick to verified providers — all providers on Treatcompare are GPhC-registered pharmacies or CQC-regulated services. Buying from unregistered sources risks counterfeit medication.

Is Mounjaro available on the NHS?

Mounjaro received NICE approval for weight management and is being rolled out through NHS specialist weight management services. However, access criteria are strict and waiting lists are typically 6–18 months.

Most patients who want to start treatment promptly access Mounjaro through private providers.

Do I need a prescription?

Yes. Mounjaro is a prescription-only medication (POM) in the UK. You cannot legally buy it without a clinical consultation and prescription from a registered prescriber.

Most online providers include the consultation in their price — you complete a health questionnaire, a prescriber reviews it, and the medication is dispatched if clinically appropriate.

Compare prices now

Prices change frequently as providers compete. Use our comparison tool to see today's prices from all verified UK providers.

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