Effexor Xr

The antidepressants to watch in '06  Jan 4, 2006
CNN Wyeth (up $0.43 to $46.50, Research) bills its drug Effexor XR as the world's top selling antidepressant. The numbers bear this out, but they're slipping. ...

Drug makers face headache as patents expire  Dec 18, 2005
Austin American-Statesman (subscription), ...challengers. In 1997, Wyeth patented Effexor XR to improve on its initial version and extend the antidepressant's sales life until 2010. ...

Decision Resources Forecasts the Five Drugs that Will Achieve ...  Dec 20, 2005
Yahoo! News (press release) For example, sales of Wyeth's blockbuster antidepressant Effexor XR were flat in 2005, a reversal that the company attributed in part to increased competition ...