Shionogi and Duchesnay add new patents to Osphena dispute

05-08-2021

Alex Baldwin

Shionogi and Duchesnay add new patents to Osphena dispute

Pavel Kapysh / Shutterstock.com

Pharmaceutical companies Shionogi and Duchesnay have filed a second lawsuit against Hetero labs, claiming that the company infringed two additional patents related to Osphena (Ospemifene)—a treatment for vaginal pain during sex.


Osphena, Duchesnay, Shionogi, FDA, ANDA, Generic, US District Court for the District of Delaware

LSIPR