Doctors test if weight loss surgery changes how blood thinners work

This study aimed to understand how weight loss surgery and severe obesity affect how the body processes a common blood thinner called rivaroxaban. Researchers gave the medication to 67 people across four groups: severely obese individuals, those who had gastric bypass surgery, those who had sleeve gastrectomy surgery, and a control group. They measured drug levels in the blood over time to see if surgery or body weight changed how the medication was absorbed and worked.