YAZ is a progesterone and estrogen combination birth control pill. Yaz is used for preventing pregnancy.
Teva Pharma has claimed that, as the first company to file an ANDA containing a paragraph IV certification for this product, it has been awarded a 180-day period of marketing exclusivity.
In 2008, Teva’s subsidiary Barr Pharmaceuticals had entered into a supply and licensing agreement with Bayer. Under this agreement, Teva has the right to launch an authorized generic version of Yaz on July 1, 2011, or earlier in certain circumstances.