Mounjaro Cost UK: The Full Breakdown for 2026

Mounjaro (tirzepatide) is currently only available through private prescription for weight management in the UK, which means you pay the full cost yourself. There is no NHS subsidy for weight loss use. As of March 2026, a single Mounjaro KwikPen (one month's supply of four weekly doses) costs between £130 and £320 depending on your dose and pharmacy. The cost varies by dose because higher doses contain more active ingredient:

• 2.5mg (starter dose): £130 – £230
• 5mg: £140 – £240
• 7.5mg: £150 – £250
• 10mg: £160 – £270
• 12.5mg: £165 – £290
• 15mg (maximum dose): £170 – £320

These are prices for the medication alone. Some pharmacies include the prescriber consultation and delivery in this price, while others charge separately. Always check the total at checkout, not just the headline medication price. You can see live prices from 60+ UK pharmacies on our price comparison page.

Your monthly Mounjaro cost depends on three main factors: your current dose, which pharmacy you use, and whether you are on a subscription plan. At the cheapest pharmacies, a typical monthly cost at each dose level is:

• 2.5mg: From approximately £130/month
• 5mg: From approximately £140/month
• 7.5mg: From approximately £150/month
• 10mg: From approximately £160/month
• 12.5mg: From approximately £165/month
• 15mg: From approximately £170/month

At the most expensive pharmacies, particularly high-street brands and premium services, the same doses can cost 50-80% more. The difference between the cheapest and most expensive pharmacy for 5mg Mounjaro can exceed £100 per month. Over six months of treatment, that gap amounts to £600 or more in unnecessary spending. Subscription plans offered by many pharmacies typically save 5-15% compared to one-off purchases. If you plan to stay on treatment for several months, a subscription can reduce your monthly outlay meaningfully. See our subscription vs pay-as-you-go guide for a detailed comparison.

A full course of Mounjaro treatment following the standard titration schedule typically lasts 12 to 18 months. Here is what a realistic annual cost looks like. The standard titration schedule is:

• Month 1: 2.5mg (starter dose)
• Month 2: 5mg
• Months 3-4: 7.5mg
• Months 5-6: 10mg
• Months 7-8: 12.5mg (if needed)
• Months 9-12: 15mg or maintenance dose

Using the cheapest available pharmacy prices, a 12-month treatment costs approximately £1,800 to £2,200. Using mid-range pharmacies, expect £2,400 to £3,000. At premium pharmacies, the annual cost can exceed £3,500. Not everyone needs to reach the maximum 15mg dose. Many users find an effective maintenance dose at 7.5mg or 10mg, which significantly reduces the ongoing monthly cost. Your prescriber will help determine the right maintenance dose based on your response to treatment. To calculate your personal treatment cost based on your target dose and preferred pharmacy, use our cost calculator or titration planner.

The headline price of Mounjaro is not always the total cost. Several additional charges can increase what you actually pay:

• Prescriber consultation fee: Some pharmacies charge £20 to £49 for the initial consultation, and £10 to £25 for follow-up reviews. Others include this in the medication price. Always check.
• Delivery charges: Most pharmacies offer free standard delivery, but some charge £5 to £10 for next-day or named-day delivery. Since Mounjaro requires cold-chain shipping, delivery is not optional.
• Sharps bin and needles: Some pharmacies include needles and a sharps disposal container; others do not. A sharps bin costs around £3 to £5 if purchased separately.
• Blood tests: A few pharmacy services require blood tests before prescribing, which may be charged separately (£30 to £60 if not done through your GP).
• Cancellation or admin fees: Some subscription plans charge a fee if you cancel mid-cycle. Read the terms before committing.

The best-value pharmacies include the consultation, medication, delivery, and basic supplies in a single price with no hidden extras. Our comparison table flags what is included at each pharmacy so you can compare total costs accurately.

Several factors contribute to the high cost of Mounjaro in the UK:

• Patent protection: Eli Lilly holds the patent on tirzepatide, meaning no generic versions are available. Without generic competition, the manufacturer sets the price. Generic tirzepatide is unlikely to be available in the UK before the late 2020s at the earliest.
• Private prescription market: Because Mounjaro for weight loss is not available on the NHS, pharmacies set their own retail prices. There is no NHS price cap or regulation on what private pharmacies can charge.
• Manufacturing complexity: Mounjaro is a biological medicine manufactured in specialised facilities. It requires cold-chain storage and distribution, which adds to logistics costs.
• Prescriber costs: Each prescription requires a clinical review by a qualified prescriber (doctor or pharmacist independent prescriber). This clinical time is factored into the price.
• Global demand: Mounjaro has seen explosive demand worldwide, and supply constraints have periodically affected UK availability, particularly for higher doses.

The good news is that prices have been falling steadily as more pharmacies enter the market. In September 2025, many pharmacies raised prices after Eli Lilly increased wholesale costs, but competitive pressure has since brought retail prices back down in many cases. Read more in our price increase analysis.

There are several practical ways to spend less on Mounjaro without compromising on quality or safety:

• Compare prices every time you reorder: Pharmacy prices change frequently, sometimes weekly. The cheapest option today may not be cheapest next month. Check our comparison page before each order.
• Use discount codes: Many pharmacies offer first-order discounts or ongoing promotional codes that save £10 to £30 per order. See our discount codes page for current offers.
• Consider subscription plans: Monthly subscriptions typically save 5-15% compared to one-off purchases and guarantee your supply.
• Set up price alerts: Use our price alert system to get notified when your dose drops below a target price.
• Choose the right maintenance dose: Work with your prescriber to find the lowest effective dose. Staying at 7.5mg rather than escalating to 15mg saves £20 to £90 per month at most pharmacies.
• Check if your employer offers health benefits: Some employer health plans, private health insurance policies, or health cash plans will reimburse part of the cost of weight management medications.