Zepbound UK: Is Tirzepatide for Weight Loss Available Under This Name?

Zepbound is a brand name for tirzepatide, a dual GIP/GLP-1 receptor agonist manufactured by Eli Lilly. In the United States, the FDA approved Zepbound specifically for chronic weight management in adults with obesity or overweight with at least one weight-related condition. The key thing to understand is that Zepbound and Mounjaro contain exactly the same active ingredient: tirzepatide. Eli Lilly chose to market tirzepatide under two different brand names for two different indications. In the US, Mounjaro is approved for type 2 diabetes, while Zepbound is approved for weight loss. The doses, the KwikPen delivery device, and the medication inside are identical.

No, Zepbound is not available in the UK as a separate product. In the UK, tirzepatide is marketed only under the brand name Mounjaro. The MHRA (Medicines and Healthcare products Regulatory Agency) has approved Mounjaro, and that is the only tirzepatide brand available through UK pharmacies. However, this does not mean UK patients are missing out. UK doctors and pharmacist prescribers routinely prescribe Mounjaro for weight management. While Mounjaro's primary UK licence is for type 2 diabetes, off-label prescribing for weight loss is widespread and well-established among private prescribers. The practical difference for UK patients is zero. Whether you see "Zepbound" discussed on American social media or "Mounjaro" on UK pharmacy websites, you are looking at the same tirzepatide molecule in the same KwikPen device at the same dose strengths.

There is no clinical difference between Mounjaro and Zepbound. They are the same medication:

• Same active ingredient: Tirzepatide
• Same manufacturer: Eli Lilly
• Same doses: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, and 15mg
• Same delivery device: KwikPen pre-filled injector
• Same mechanism: Dual GIP/GLP-1 receptor agonist
• Same clinical trial data: The SURMOUNT trials demonstrated efficacy for both weight management (Zepbound label) and diabetes management (Mounjaro label)

The only difference is branding and regulatory labelling. In the UK, if you want tirzepatide for weight loss, you buy Mounjaro. You can compare current prices for the 2.5mg starter dose or the 5mg maintenance dose on our comparison page.

Since Zepbound is not available in the UK, you should look for Mounjaro instead. It is available from over 60 GPhC-registered online pharmacies across the UK. The process is:

• 1. Choose a pharmacy: Use our price comparison page to find the cheapest option for your dose.
• 2. Complete a consultation: All pharmacies require an online health assessment before prescribing.
• 3. Receive your prescription: If approved, a prescriber issues your Mounjaro prescription.
• 4. Delivery: Medication arrives in temperature-controlled packaging, typically within 1-3 working days.

Prices for Mounjaro start from approximately £130 per month for the 2.5mg starter dose. Prices vary significantly between pharmacies, so comparing is essential. See our cheapest Mounjaro guide for savings tips and active discount codes.

Clinical trials showed impressive weight loss results for tirzepatide, regardless of whether it is branded as Zepbound or Mounjaro:

• 5mg dose: Average weight loss of 15% of body weight
• 10mg dose: Average weight loss of 19.5% of body weight
• 15mg dose: Average weight loss of 22.5% of body weight

For a person weighing 100kg, that means losing between 15kg and 22.5kg over approximately 18 months. These results make tirzepatide the most effective weight loss medication currently available. For detailed results data and UK user experiences, see our weight loss results guide. To start comparing Mounjaro prices across 60+ UK pharmacies, visit our price comparison page.