Patients taking blockbuster drugs like Wegovy for weight loss may face potentially deadly complications if they need surgery or other procedures that require empty stomachs for anesthesia. Experts say recent guidance to halt the medication for up to a week may not go far enough. Some doctors say the drug should be held for three weeks before sedation to accommodate the delayed emptying of the stomach, which can cause patients to inhale food and liquid into their lungs. Such complications can lead to deadly injury, infection and even death. It’s not clear how many patients taking the anti-obesity drugs may be affected.