The history of the erectile dysfunction drug presents a challenging picture for those considering investment. While the initial release generated substantial gains, the expiration of its intellectual property protection opened the floodgates to cheaper versions, dramatically eroding market share. This poses a specific risk for drug manufacturers ba

The history of Viagra, and its developer copyright, presents a complex case study for investors. Initially a blockbuster drug, producing billions in income, its exclusivity period created a wave of generic competition , significantly impacting its market share . While certain businesses may attempt to capitalize on related treatments , the present