Which marketing strategy revolutionized pharmaceutical sales by becoming the first widely adopted direct-to-consumer approach for prescription medications?

Marketing in the medical and pharmaceutical industry has evolved significantly over the decades, with certain strategies becoming groundbreaking for how healthcare products reach professionals and patients. This poll tests your knowledge about a famous marketing innovation that changed how medical products were introduced to healthcare providers. Can you identify which revolutionary marketing approach truly transformed the pharmaceutical industry?

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Television advertisements with mandatory risk disclosures (pioneered by Schering-Plough for Claritin in 1997)
Product placement in medical TV dramas (pioneered by Johnson & Johnson in 1985)
Celebrity doctor endorsements (pioneered by Pfizer in 1991)
Patient testimonial campaigns (pioneered by Merck in 1989)