Mounjaro Safety and Licensing information

Yes, Mounjaro is legal in the UK and has been approved for use for weight loss treatment and weight management by the MHRA. It is manufactured by Eli Lilly and Company and is only available on prescription.

Mounjaro underwent extensive clinical trials to evaluate its safety and efficacy. It was tested in multiple phases involving thousands of participants. These trials demonstrated that Mounjaro is effective in promoting weight loss and managing type 2 diabetes.

Mounjaro is safe for most people when prescribed and monitored by a healthcare professional. However, like all medications, there may be side effects. Common side effects include nausea, diarrhoea, constipation, and headaches. More serious side effects are rare but can include gastroparesis (where food doesn’t pass through the stomach properly), intestinal blockage (where the tubes of your digestive tract get blocked, which can lead to damage to the bowel wall) pancreatitis (severe inflammation of the pancreas) or gallbladder disease. Individual risk of side effects are considered as part of our clinical assessment.

In the UK Mounjaro is available by prescription and has been approved as a treatment for adults with type 2 diabetes and those needing assistance with weight loss when traditional methods have not been effective. It is particularly beneficial for individuals with a BMI of 30 or over or a BMI 27 or over who have additional weight-related health conditions.

Mounjaro has also received official approvals from other regulatory bodies internationally such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA).

It’s fairly common for some patients to experience side effects from Mounjaro, although these are usually mild. Mounjaro side effects may include bloating, constipation, nausea, sickness, diarrhoea and sulphur burps. Please see our detailed Mounjaro side effects page for more information.

If you feel seriously unwell it’s important to get medical assistance as soon as possible from NHS111, your GP, or your nearest A&E.

For more information on managing side effects see this help guide, and if the symptoms persist then please contact us for help. Anti-sickness medication is available at no extra charge if our clinicians decide it is appropriate for you.