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.

Join the Claim is not a law firm. This information is for general guidance only and does not constitute legal advice.

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? Tell us about it. 

ANSWER TO SEE THE POLL RESULTS

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 with one of our trusted partner law firms.

Keep up with the latest on YouTube, Instagram, Facebook, X and more.
Wherever you scroll, we’ve got you covered.

Join the conversation

@jointheclaim

Want more straight-talking takes on the latest weight loss injection news?
Follow us on TikTok for quick explainers, updates, and tips that put you in the know.

Not on TikTok? No problem. You can still keep up with the latest on Instagram, Facebook, X and more.
Wherever you scroll, we’ve got you covered.

Latest weight loss injection news

Mounjaro’s UK price is rising. With some private patients priced out, experts warn some may...
As lawsuits mount overseas and UK cases raise concern, Join the Claim looks at the...
Weight loss injections are booming – but are they safe? Learn why some experts believe...

Want to stay one step ahead?

Sign up for updates and we’ll keep you in the know. No jargon, no waffle – just clear, need-to-know info about your rights, and how to hold big companies to account.

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.

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.

If you are concerned about how you were prescribed a weight loss drug, or believe you have suffered harm, you may wish to seek independent legal advice. We do not accept any responsibility or liability for any loss, damage, or consequences resulting from actions taken based on the information provided.

Join the Claim is not a law firm and does not provide legal representation. We work with regulated UK law firms and help connect eligible individuals to group actions managed by authorised legal professionals. Our partner law firms work on a no-win, no-fee basis. You’ll only pay if your claim succeeds. Fees may apply if you cancel after the cooling-off period or breach your agreement. All terms are clearly explained before joining. 

Looking for other issues?

We lift the lid on the shady practices affecting your rights, your wallet, and your trust.