AI Analysis of 400,000 Reddit Posts Finds Potentially Overlooked Side Effects of Ozempic and Mounjaro

Key Points:

• Researchers at the University of Pennsylvania used AI to analyze over 400,000 Reddit posts from nearly 70,000 users discussing GLP-1 agonists like semaglutide and tirzepatide, identifying clusters of menstrual changes, temperature swings, and fatigue not well documented in current drug labels.
• The AI translated informal Reddit language into standardized medical terms, revealing that 44% of users mentioned side effects, with gastrointestinal issues being most common, but also highlighting unexpected reproductive and temperature-related symptoms reported by smaller groups.
• Menstrual irregularities such as heavy bleeding and spotting, along with chills and hot flushes, emerged as notable signals, prompting researchers to suggest further investigation despite the study not proving causation.
• Limitations include the non-representative Reddit user base, self-reported and unverified data, and the inability to determine symptom frequency or direct drug causality; however, biological plausibility exists given the drugs' effects on the hypothalamus.
• The team plans to broaden their research to other social media platforms and languages, aiming to develop AI-driven social media monitoring as a potential early-warning system for medication side effects.