Bayer unveils new lawsuit against Israeli group Teva
The German pharmaceutical company Bayer has filed a US lawsuit against Israeli rival Teva for false advertising and patent infringement, Bayer said late on Tuesday.
Bayer says that Teva "falsely claims" on the label of its Gianvi product that the treatement "contains the same product stabilizer as YAZ," a best-selling oral contraceptive made by the German group.
The lawsuit was filed in the Northern District of Illinois "for false advertising and patent infringement," a Bayer statement said.
Gianvi is a generic product that competes with YAZ, but which does not, according to Bayer, "contain ethinyl estradiol stabilized by betadex as a clathrate," to improve the product's stability and extend its shelf life.
Bayer began legal proceedings againt Teva in early June but the Israeli group maintains it can distribute Bianvi in the United States from July 2011.
Teva's lucrative generic products compete with those made by several large pharmaceutical groups.
Bayer filed another complaint against Teva in July 2009 to protect a US patent for a product to treat sexual impotency.
© 2010 AFP