Summary
- In November 2024, the UK reported the first death that is possibly linked with Mounjaro.
- This case made doctors more careful whey they are prescribing the drug.
- Health experts are now reviewing safety guidelines to make sure Mounjaro is used responsibly and correctly.
What is Mounjaro?
Mounjaro (tirzepatide) is an injection that was first made to help people with type 2 diabetes. Now it is used for weight loss and was approved for NHS use in 2024. Mounjaro works like other well-known weight-loss injections like Ozempic and Wegovy.
How Mounjaro helps with weight loss
- Mounjaro copies the effects of GLP-1 and GIP, the two natural hormones in your body.
- GLP-1 and GIP controls your appetite, digestion and blood sugar.
- It also helps you feel full faster and reduces food cravings.
You can learn more about how Mounjaro works in our guide: Mounjaro Doses: UK Dosage Schedule, Pen Info & Maintenance.
Differences between Mounjaro, Ozempic and Wegovy
These three injections work in similar way, their key differences are:
| Drug | Main Hormones Targeted | Original Purpose | Key Difference |
| Ozempic | GLP-1 | Type 2 diabetes |
|
| Wegovy | GLP-1 | Type 2 diabetes |
|
| Mounjaro | GLP-1 and GIP | Type 2 diabetes |
|
Mounjaro can be stronger because it acts on two hormones instead of one, but it can cause more side effects for some.
The First Reported Mounjaro Death in the UK
What happened?
In November 2024, a middle-aged patient in the UK who had been using Mounjaro for several months passed away after developing severe stomach problems. They were taken to the hospital with severe abdominal pain and vomiting but did not survive after a few days. The case was later passed to the coroner for further investigation.
The patient’s health background
Reports show that the patient also had other health conditions, including high blood pressure and early-stage kidney disease. Mounjaro is generally safe especially with the supervision of your doctor. But, they also stress that Mounjaro may also cause higher side effects if you already have digestive issues, pancreatitis or kidney diseases.
Doctors are extra careful when prescribing Mounjaro especially if the patients are on existing medications that affect digestion or metabolism.
What the coroner found so far
- The first report found no signs of drug misuse.
- But, it did suggest a possible link between Mounjari and a bowel blockage which is a rare side effect of GLP-1 drugs.
- The NHS and MHRA said that the case is still being investigated as part of their safety checks.
- Authorities also said that this appears to be an isolated case among many Mounjaro prescriptions currently used in the UK.
How Common Are Deaths Linked to Mounjaro?
Global and UK Safety Data
Around the world, only a small number of deaths are linked to Mounjaro and most of the incidents are also involved underlying medical issues or drug misuse.
In the UK, the Yellow Card scheme of the MHRA recorded fewer than 10 suspected deaths that involved tizepatide, and none have been proven to be directly caused by the drug.
Note that these reports do not confirm that Mounjaro caused the deaths, they simply highlight cases that regulators continue to study.
Who Might Be at Higher Risk?
Some people may have a higher chance of getting serious symptoms especially if:
- The dose in increased too quickly
- They experience severe dehydration
- The have existing medical conditions
- They buy Mounjaro from unauthorized suppliers.
For more guidance, read our article: Mounjaro Cost UK: Monthly Prices & Prescription Guide.
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Expert Reactions and Ongoing Safety Concerns
What Doctors and NHS Officials Are Saying
UK doctors and health experts say that Mounjaro is usually safe when it is prescribed and monitored by a qualified doctor.
The NHS reminds doctors to always check for digestive and metabolic issues before starting the Mounjaro treatment and to closely monitor the patients especially while on dose escalation.
How Mounjaro Compares to Similar Drugs
- Mounjaro, Wegovy and Ozempic all cause side effects like nausea, slower digestion, and potential intestinal blockage.
- Mounjaro works on two hormones instead of one, which makes it more effective but also more likely to cause stomach issues in some patients.
Overall, the benefits of Mounjaro ourweigh the risks when it is used correctly.
Regulatory and Legal Updates
MHRA’s Safety Review on Mounjaro
The Medicines and Healthcare products Regulatory Agency (MHRA) issued an updated safety notice after the reported UK death in November. It reminded doctors and clinics to:
- Report any suspected severe side effects quickly.
- Make sure patients are well educated for possible risks and symptoms.
- Advise slow dose increases are important and always stay hydrated.
The MHRA also began reviewing Mounjaro’s packaging and prescribing information to make safety warnings more clearer. However, there has been no recall or suspension, Mounjaro is still approved for both NHS and private use in the UK.
NHS and Clinic Policy Updates
By early 2025, both the NHS and private clinics put in place new safety rules for patients using Mounjaro:
- Tighter checks before prescribing Mounjaro, especially for patients with other medical problems.
- More thorough health reviews to look for risk with the health, digestion and kidneys.
- Doctors making sure that patients understand serious warning signs to watch for.
- Clear advice on when to get medical help right away.
- Better aftercare support.
Our article What to Eat on Mounjaro: 10 Healthy Choices shares how the right foods can reduce side effects and support weight loss.
Should You Stop Taking Mounjaro?
For most patients, the answer is no unless your doctor tells you to. The first UK death linked to Mounjaro does not mean the drug is unsafe for everyone. But, it is a reminder that close medical monitoring is important, especially in the first few months of treatment.
If you are starting Mounjaro, it is important to:
- Follow prescribed dose schedule
- Attend regular check-ups
- Notice how you body reacts and report any side effects
You can learn more about expected progress in our article Mounjaro Weight Loss by Week: Your Weekly Progress Guide.
Safe Alternatices for Weight Loss
If Mounjaro is not the right fit for you, these are other options include:
- Wegovy: GLP-1 injection that works in a slightly different way.
- Lifestyle-based plans: Healthy eating and regular exercise.
- Non-injection treatments: Approved oral medications under medical supervision.
FAQs
- What is Mounjaro and how does it work?
Mounjaro is a weekly injection that helps control cravings and blood sugar. It works by copying the natural hormones to make you feel full longer and support steady weight loss.
- What happened in the first UK Mounjaro death case?
In November 2024, a patient unfortunately died from possible abdominal complications linked to Mounjaro. Health authorities are still reviewing the case.
- Are deaths from Mounjaro common?
No. These are very rare, and most side effects are mild when used under medical supervision.
- Should I stop using Mounjaro after this news?
Not unless your doctor advises it. Always follow your prescribed plan and report any severe side effects.
- What do health authorities say about Mounjaro safety?
The MHRA and NHS confirm that Mounjaro is safe when used correctly, with careful dose monitoring and regular check-ups.
Final Thoughts
The first Mounjaro death in the UK is a serious reminder that every medicine has some risk. However, this case seems isolated and many patients continue to use Mounjaro with proper medical guidance.
The message is balance and caution. Listen to your body, follow what your doctor advises, and report any complications. Because when used safely, Mounjaro remains a powerful tool for controlling obesity and improving health.
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