Semaglutide-associated drug-induced liver injury: a case report and review of the literature.

Semaglutide is a glucagon-like peptide-1 receptor agonist (GLP-1RA) used to manage type 2 diabetes and, since 2021, for weight loss in individuals with obesity or weight-related comorbidities. It works by enhancing insulin secretion, delaying gastric emptying and reducing appetite. Common side effects include hypoglycaemia, gastrointestinal disturbances, nausea, weight loss and cholelithiasis. While some studies have noted an association with acute kidney injury, reports of liver injury are rare. We present a rare case of drug-induced liver injury in a middle-aged female, associated with transient liver failure after semaglutide use. She presented one month after starting the medication with rapidly worsening liver function tests. Investigations, including a non-invasive liver screen, viral studies, ultrasound and CT imaging, revealed no clear cause. A liver biopsy supported the diagnosis of drug-induced liver injury. The patient improved with supportive treatment and withdrawal of semaglutide. This case underscores the importance of clinician awareness given its increasing, and often unregulated, use for weight loss.