Which revolutionary scientific product was initially marketed as 'The Pill That Could Change The World' before becoming a household name?

In the competitive world of scientific products, marketing innovation can make or break success. Some scientific breakthroughs became household names not just through their technical merits, but through brilliant product marketing strategies. This trivia question explores how one groundbreaking scientific product transformed from a laboratory achievement to a global phenomenon through strategic brand storytelling and product marketing.

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Penicillin, which was initially marketed with dramatic before-and-after patient recovery stories in medical journals
Prozac, which transformed mental health discussions through Eli Lilly's pioneering direct-to-consumer marketing campaign
The Apple Watch, which Apple first marketed exclusively as a medical monitoring device before expanding to lifestyle applications
The HPV vaccine Gardasil, which Merck originally promoted as a universal preventative measure rather than focusing on its specific application