Pfizer Korea's top-selling ethical products face strong challenge

Pharmaceutical business sources say that Pfizer Korea's flagship products such as Norvasc (amlodipine besylate) and Lipitor (atorvastatin) is/will be grapping with fierce competition among competitors to carve out their domestic market share in the midst of deteriorating market conditions like sluggish sales.

1) Novarsc

- The US FDA gave its final approval for Ambaz (amlodipine maleate) d...