Which pharmaceutical company pioneered the first direct-to-consumer (DTC) advertising campaign for prescription medication in the United States, fundamentally changing pharmaceutical brand strategy?

Brand recognition in the pharmaceutical industry is a complex interplay of scientific credibility, patient trust, and marketing strategy. While many pharmaceutical companies focus primarily on healthcare professionals, successful pharmaceutical brands also create meaningful connections with patients. This trivia question explores one of the most significant pharmaceutical branding transformations that changed how patients interact with medication information.

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Eli Lilly with Prozac (fluoxetine) in 1997
Pfizer with Viagra (sildenafil) in 1998
Merck with Claritin (loratadine) in 1996
AstraZeneca with Prilosec (omeprazole) in 1995