New 5W AI Visibility Index: Pharma Spends Billions on DTC Ads. The AI Engines Talk About Eli Lilly and Novo Nordisk Anyway

Drugmakers run the largest direct-to-consumer advertising category in the United States. New 5W research finds AI citation share does not follow the ad budget — it follows the drugs patients self-research. Eli Lilly and Novo Nordisk lead the…

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