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

▤ Summary

5W released a Pharma / Rx AI Visibility Index that compares pharmaceutical DTC ad spend with how often companies appear in AI-generated answers. The report says Eli Lilly and Novo Nordisk lead AI citation share even though ad spend does not predict citation rank. It argues that AI engines retrieve durable public coverage, research, and reference content rather than paid media. The piece positions the finding as a marketing strategy insight for pharma brands trying to influence consumer research in AI tools.

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