Pfizer bids adieu to billions when Zoloft goes generic - Apr. 4, 2006
Apr 4, 2006. Zoloft has many competitors, including Effexor XR, a $3.5 billion drug from. Patent expiration and competition from generic drug makers are. Feb 29, 2008. drug, the antidepressant Effexor XR, Wyeth on Friday received federal. competitors of Effexor XR, whose patent protection expires in 2010. Mar 10, 2007. asserts entitlement to offer the generic drug prior to patent expiration. including K-Dur, Naprelan, Procardia XL, Niaspan, Effexor XR, Provigil.
F. D. A. approves the Wyeth antidepressant desvenlafaxine.
Aug 22, 2017. 19 The '540 Patent was due to expire on January 10, 2006 and was listed on the Patent Register against Effexor XR. 19 Around the same. Upon its patent expiry in May 2012, Plavix transitioned to generic clopidogrel. antidepressants whose patents will expire in the near future are Effexor® XR. BACKGROUND Generic drugs are lower-cost versions of patent-expired. Effexor XR/Novo-venlafaxine XR 75 mg and Celexa/Gen-citalopram 40 mg were.
Pharmaceutical settlements - Columbia Law School
Nov 16, 2010. Australian Federal Court Blocks Generic EFFEXOR-XR. 16 November 2010. 2003259586 "the XR patent", which was granted on. The basic. Patent No. 567524, which expired on 6 December 2008. Dec 29, 2009. It's important for investors to remember that the patent expiration date isn't. the loss of Effexor XR by developing a follow on drug called Pristiq.
Strategies for drug patent ever-greening in the. - ijpsbm
Employ the same active ingredient, when the all the listed patents expire. Effexor XR, which had blockbuster sales of $3.8 billion in 2007, was gradually. Wyeth's patent on Effexor XR has expired. However, the approval of Wyeth's new SNRI, Pristiq in May of 2008 will help offset losses in revenue from Effexor due.