An unlicensed weight-loss drug still undergoing clinical trials in the US is being sold illegally online in the UK, with underground laboratories believed to be producing their own versions. Sky News has found sellers offering bulk orders of retatrutide from China, with one woman from Yorkshire ending up in hospital after suffering a severe allergic reaction to a product she bought on Facebook. Sky's Barnaby Papadopulos investigates. #SkyNews #weightloss #retatrutide #weightlossdrug SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews Follow us on X: https://twitter.com/skynews Like us on Facebook: https://www.facebook.com/skynews Follow us on Instagram: https://www.instagram.com/skynews Follow us on TikTok: https://www.tiktok.com/@skynews For more content go to http://news.sky.com and download our apps: Apple https://itunes.apple.com/gb/app/sky-news/id316391924?mt=8 Android https://play.google.com/store/apps/details?id=com.bskyb.skynews.android&hl=en_GB Why not listen to one of our podcasts? This is Why, available for free here: https://podfollow.com/thisiswhy or Ed Conway's Stuff Matters, available here: https://podfollow.com/stuff-matters To enquire about licensing Sky News content, you can find more information here: https://news.sky.com/info/library-sales