Used Wegovy, Ozempic or Mounjaro in the UK?

Weight loss injections like Wegovy, Ozempic and Mounjaro have taken the UK by storm – fuelled by celebrity buzz and promises of quick results. But behind the hype, more and more users are reporting unexpected side effects, some of them serious. 


Could this be the next big health scandal? We take a look at what we know so far, and why it matters.

The risks of weight loss injections

Weight loss injections have become hugely popular. But not everyone has had a positive experience. While some achieve their desired results, others have encountered serious health complications, including:

Have you used one of these treatments and had a bad reaction? We’re collecting real stories to raise awareness. No pressure, just your experience, in your own words.

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Have you experienced any of these side effects after using weight loss injections?

Weight loss jabs: The side effects nobody’s talking about

Ozempic, Mounjaro, Wegovy — they’ve been called miracle fixes, but for some, the side effects are anything but minor. If you’ve experienced complications after using a weight loss injection, you’re not alone. From ongoing nausea to serious health issues, this guide breaks down what’s being reported — and what you can do next to protect your health and your rights.

Could you have a weight loss injection claim?

Despite the risks, some patients have accessed weight loss injections through online pharmacies and unregulated medi-spas, often without proper medical assessment. And, in the United States, lawsuits are already underway against drug manufacturers for failing to provide adequate safety warnings. Join the Claim is closely following legal developments here in the UK. Sign up for updates, and we’ll notify you if a group action lawsuit is launched.

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Weight loss injection claim FAQs

If the manufacturer, medical provider, or pharmacy failed to warn you of the risks or acted negligently, you may be able to claim compensation. Currently, no class action lawsuit has been launched in the UK, but legal action could emerge soon.

If you have experienced severe or prolonged side effects from a weight loss injection, take the following steps:

  • Consult a doctor – Obtain medical advice and request your medical records.
  • Keep track of your symptoms – Record when you started the injection, what side effects you experienced, and how they have affected you.
  • Report adverse effects – Submit details through the Yellow Card scheme, the UK’s official medication safety monitoring system.
  • Stay up to date – Monitor developments to see if a UK lawsuit emerges.

Even though no lawsuit is in progress in the UK, keeping documentation could support your claim in the future.

In the UK, if a group of people have experienced loss, or otherwise been harmed by an organisation’s law breaking, they can come together to fight for justice. Levelling the playing field when standing up to big businesses, group actions prove that there is strength in numbers. At Join the Claim, we bring consumers and law firms together to ensure these group actions are as powerful as possible.

We won’t charge you a single penny. And we ensure any law firms we connect you with operate on a no-win-no-fee basis. If you win, the law firm will either take its fees from your compensation payment or recover these from the defendants.

A no win, no fee agreement means you don’t pay your solicitor’s legal fees if your claim is unsuccessful. This makes it easier and more affordable to take part in group litigation.

Want the full picture, including what to check before signing?  Read our complete guide to no win, no fee agreements here. 

If weight loss injections have negatively affected your health, don’t wait to take action. While legal proceedings have begun in the US, the UK could soon follow suit. Sign up for updates and be the first to know if a UK group action lawsuit is filed.

Disclaimer 

This information is for general information purposes only and does not provide medical or legal advice. While we aim to keep the content accurate and up to date, information about medicines, side effects, and legal developments may change over time.

Always speak to a qualified healthcare professional before starting or stopping any medication, including weight loss injections such as Ozempic, Wegovy or Mounjaro. If you are experiencing side effects, contact your GP, pharmacist or NHS 111.

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