New warning for anyone who vapes while using weight-loss drugs

NewsHealthHealthA doctor has explained why you may need to quitNeil Shaw Assistant Editor (Money and Lifestyle)08:45, 27 Aug 2026A doctor has issued a new warning to anyone using weight-loss jabs that they may need to quit vaping. Dr Crystal Wyllie at Asda Online Doctor said vaping can impact weight-loss treatments, and make side effects worse.‌Dr Wylie says vaoing while using the jabs is 'generally not advised'. She said: “While there is no direct chemical conflict between nicotine vapes and GLP-1 weight-loss treatments like Wegovy and Mounjaro, combining the two can worsen gastrointestinal side effects like nausea and acid reflux. This is because both nicotine and weight-loss injections can irritate the stomach, so vaping or smoking can amplify any nausea, indigestion, and acid reflux th