Will Pfizer-Wyeth Product Overlap Present Antitrust Problems?
February 03, 2009
The first and most glaring product overlap associated with the Pfizer (PFE) - Wyeth (WYE) deal involves WYE's "Effexor" and PFE's "Zoloft" antidepressant drugs. These are two of the top antidepressants on the market and among the most highly marketed and internationally recognized products in this segment.
As the chart below from 2006 illustrates, Effexor and Zoloft each have close to 20% of this lucrative market, so the combined entity would have close to 40% of the overall market. Granted, this data is almost four years old, but it is believed to closely reflect the current market conditions for this particular product niche.