Legal action has already begun in the United States, where lawsuits are being filed against pharmaceutical companies over claims that weight loss injections caused severe and life-threatening side effects.
Key developments in the US lawsuits
In the US, legal proceedings continue, with drug manufacturers facing increasing scrutiny over potential health risks.
- 2023 – Growing concerns over weight loss injections lead to an increase in reported side effects.
- Mid-2024 – First lawsuits filed in the US against manufacturers of Wegovy, Ozempic, and similar drugs, alleging failure to warn users of serious risks.
- 2025 – More cases emerge, with legal experts estimating settlements could range between $400,000 and $700,000 for serious injuries.
Lawyers claim that manufacturers failed to provide adequate warnings about the risks of severe complications, including gastroparesis, pancreatitis, and organ failure. Some US plaintiffs allege they suffered life-altering conditions due to these drugs.
UK weight loss drug legal action 2025
As the lawsuits in the United States gain momentum, speculation is growing over whether similar legal claims will arise in the United Kingdom. And while weight loss injections like Wegovy and Ozempic have been approved for use in the UK, concerns over their safety have led to increased scrutiny from regulators and legal experts.
However, unlike in the US, where litigation often moves quickly, in the UK legal action typically follows a slower path, often requiring a significant number of reported cases before lawsuits gain traction.
Key factors that could impact potential UK lawsuits include:
- Adverse reaction reports: The UK’s Yellow Card Scheme allows patients to report side effects. A surge in reports could prompt legal and regulatory action. You can find out more about the scheme here.
- Product liability laws: Under the Consumer Protection Act 1987, claimants can make a claim if they can prove a product is defective and caused harm.
- Comparative legal cases: If US lawsuits result in large settlements or verdicts, it could encourage UK claimants to take action.
UK patients and legal challenges
Although some UK patients have reported severe side effects from weight loss injections, there are currently no mass legal claims against drug manufacturers. However, law firms specialising in medical negligence, product liability, and other consumer injustices may soon begin investigating claims, particularly if a link between these drugs and serious health complications is firmly established.
What’s next?
Patients who believe they have been affected by these medications are encouraged to monitor developments closely, keep their doctor informed, report any adverse effects, and seek legal advice if necessary.
You can also register with Join the Claim, and we’ll let you know if legal action is launched in the UK. We’ll keep you updated on any developments, including new investigations, potential group claims, and what steps you can take to seek compensation.
Want more info on weight loss injections?
We’ve launched a new UK guide to help you get informed — before you start treatment, or if you’re already dealing with complications. Because behind every success story, there are real people who’ve experienced life-changing side effects, and many say they weren’t properly warned.
