Which prescription medication became famously known as 'the purple pill' through its groundbreaking direct-to-consumer marketing campaign?

Pharmaceutical marketing has transformed healthcare product recognition and patient engagement. One of the most successful pharmaceutical marketing campaigns created a color-branded identity so powerful that patients began asking for the 'purple pill' by color rather than name. This poll tests your knowledge of this influential pharmaceutical branding strategy that changed how prescription medications are marketed to consumers.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Nexium (esomeprazole)
Advair (fluticasone/salmeterol)
Lipitor (atorvastatin)
Viagra (sildenafil)