A triopoly for the ages (where one of the three entrants is an authorized generic) is due to start in a few weeks and last for 180 days: Lipitor. However, in the Lipitor triopoly, the AG will be sold by a bona fide third party (WPI), so it’s not exactly analogous to the Lovenox situation.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”