First Generic Launch has Significant First-Mover Advantage Over Later Generic Drug Entrants

First Generic Launch has Significant First-Mover Advantage Over Later Generic Drug Entrants

Source: 
Drug Patent Watch
snippet: 

The first generic drug to make it to market after drug patent expiration enjoys a significant market share advantage over later arrivals. Furthermore, market share advantage – which can be up to 90% – holds for at least three years.