Which pharmaceutical giant underwent a major rebranding in 2009, changing its visual identity after acquiring Wyeth, and unveiled a new logo featuring a DNA-inspired spiral?

The pharmaceutical industry has seen numerous brand transformations over the decades, with companies adapting to changing markets, mergers, and evolving healthcare needs. Some of these rebranding efforts have become landmark cases in corporate history, representing strategic pivots that reshaped entire business trajectories. Test your knowledge about one of the most significant pharmaceutical rebranding stories of the 21st century.

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Pfizer
Merck
Johnson & Johnson
GlaxoSmithKline