SPOTLIGHT: AstraZeneca, Par collaborate on authorized generic

AstraZeneca and Par Pharmaceutical have signed an agreement for Par to distribute an authorized generic version of AstraZeneca's Toporol [1] (metoprolol succinate) in the U.S. Authorized generics represent branded pharma's response to the fierce competition they're facing from generic drug companies as a number of blockbuster drugs lose patent protection. Release [2]