News for Healthier Living

Drug Ads Can Influence AI Treatment Recommendations, Study Finds

As people increasingly turn to artificial intelligence (AI) for health information, a new study by researchers at the Icahn School of Medicine at Mount Sinai raises questions about what happens when commercial advertising appears alongside a clinical question. The findings were reported in the November 11 online issue of The Lancet Digital Health: https://www.thelancet.com/journals/landig/article/PIIS2589-7500(26)00137-8/fulltext. Researchers tested 12 AI models from major technology companies, including Google, OpenAI, and Anthropic, to determine whether a clearly labeled pharmaceutical advertisement could influence which treatment an AI model recommended. They found that when the AI models were given a physician-written clinical case, preceded by an ad for a drug, the ad could shift which treatment the AI recommended, making it more likely to select the advertised drug. Across 33 clinical scenarios, the advertised drug was selected in 47.6 percent of responses when an ad was present

November 11, 2026


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