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Mazdutide
Weight Loss
Written By Wajahet Ali Bhatti - updated 26/02/2026 12:17Reviewed By Sidhi Nathwani - 26/02/2026 12:17
Key Points
Mazdutide has been approved in China but is yet to gain approval in the UK - estimated approval in late 2026/2027
Side effects are predominantly GI related (nausea, vomiting, diarrhoea)
Mazdutide is a dual treatment: GLP-1 and GCGR
Up to 21% weight loss in trial participants
Improvements seen in blood sugar, liver fat content and waist circumference.
How does Mazdutide work?
Mazdutide is a dual agonist peptide : a glucagon-like peptide-1 (GLP-1) and glucagon receptor (GCGR).This means it works on two hormone pathways in the body, designed to produce a greater weight loss than a GLP-1 alone.
GLP-1: Helps to keep you full, quicker, for longer.
GCGR: Has been shown to reduce body weight and blood glucose levels.
Mazdutide has been trialed in patients with diabetes and has been shown to reduce HbA1c. As well as this, a study observed that 9mg of Mazdutide significantly reduced liver fat content and also a significant reduction in waist circumference.
How effective is Mazdutide?
In early phase trials, doses up to 16mg were administered in adults with overweight or obesity. After 20 weeks, there was a significant amount of weight loss achieved by those in the medication group in comparison to those who administered a placebo.
Cohort | Mean weight loss | Individuals who achieved mean weight loss | Mean change in waist circumference |
|---|---|---|---|
1 (n=12) | 20% | 66.7% | 12% |
2 (n=12) | 21% | 75% | 17% |
3 (n=8) | 0.1% | - | 0.8% |
In another trial, consisting of 610 participants, the results demonstrated a clear superior.
Group | Mean change in body weight from baseline \- Week 32 | Weight reduction of at least 5% | Mean change in body weight from baseline \- Week 48 | Weight reduction of at least 15% |
|---|---|---|---|---|
4mg | 10.09% | 73.9% | 11% | 35.7% |
6mg | 12.55% | 82% | 14.01% | 49.5% |
Placebo | 0.45% | 10.5% | 0.3% | 2.0% |
What are the side effects of Mazdutide?
Mazdutide has a similar side effect profile to some of the weight loss medications you may already be familiar with.
Gastrointestinal side effects are the most common. These include:
Nausea
Vomiting
Diarrhoea
Bloating or abdominal discomfort
Upper respiratory tract infections were also reported in some participants. However, this was seen across all participant groups, including the placebo group.
Who would not be suitable for Mazdutide
Mazdutide is currently under development and new information regarding this treatment, including who it will be suitable for, has not yet been confirmed. Based on what we know about GLP-1s, Mazdutide will not be suitable for:
Pregnant or breastfeeding women
Those who have plans to become pregnant in the near future
Individuals who have a personal or family history of medullary thyroid cancer or multiple endocrine neoplasia type 2 (MEN2)
A history of pancreatitis
Active gallstones or issues with your gallbladder
Frequently Asked Questions
Everything you need to know
When will Mazdutide be available?+−
Mazdutide has currently been approved in China and may be approved in the UK in 2026/2027.
What are the side effects of Mazdutide?+−
Side effects of Mazdutide are similar to those of other GLP-1s.
The main side effects are GI related: nausea, vomiting, bloating, diarrhea and constipation.
Is Mazdutide better than other weight loss treatments?+−
Feature | Mazdutide | Wegovy | Mounjaro | Nevolat |
|---|---|---|---|---|
Active ingredient | Mazdutide | Semaglutide | Tirzepatide | Liraglutide |
Manufacturer | Eli Lilly, Innovent | Novo Nordisk | Eli Lilly | Zentiva |
Doses | 2mg, 4mg, 6mg - currently being studied up to 16mg | 0.25mg, 0.5mg, 1.0mg, 1.7mg, and 2.4mg | 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, 15mg | 0.6mg, 1.2mg, 1.8mg, 2.4mg, 3.0mg |
Hormones targeted | GLP-1 and GCGR | GLP-1 | GLP-1 & GIP | GLP-1 |
Availability | May receive approval in the UK in 2026/2027 | |||
Mean weight loss | Up to 21% | Up to 20% | Up to 22.5% | Up to 11% |
