Why would they share their rights with Purdue for a measley 10 mill, when they have exclusivity for 3 years?? Unless Zogenix thinks that Purdues extended -release version is superior than their own??
"If that exclusivity period had been enforced, it would have interfered with the plans of Stamford, Conn.-based Purdue Pharma plans to launch its own extended-release version of pure hydrocodone."