FAKE weight loss jabs that have left people in comas been found in the UK, health officials have warned.

Brits should avoid buying pre-filled pens claiming to contain Ozempic or Saxenda without a prescription, according to the Medicines and Healthcare products Regulatory Agency.

The agency has seized 369 counterfeit Ozempic pens since January this year, with a "small number of people" being hospitalised after using them, it said.

Some were left in comas and hypoglycaemic shock, which can be fatal.

Dr Alison Cave, MHRA chief safety officer said: "Buying products such as Ozempic or Saxenda without a prescription, from illegally trading suppliers, significantly increases the risk of receiving something which is either fake or not licensed for use in the UK. 

"Products purchased in this way do not meet our strict quality and safety standards, and taking such medicines may put your health at significant risk.

"We are advising all members of the public not to use any pre-filled weight loss pens they may have bought online and instead to report it to us so that we can investigate and take any necessary action.

"If you suspect that you've had a side effect to semaglutide, liraglutide or any other medicine, or suspect it's not a genuine product, you can report it to our Yellow Card scheme."