Perrigo confirms patent challenge for generic version of Sernivo® spray, 0.05%
Perrigo announced that Promius Pharma initiated patent litigation on May 22, 2018 in the U.S. District Court for the Eastern District of Texas, regarding Perrigo's Paragraph IV ANDA for betamethasone dipropionate, 0.05% spray, asserting patents listed in the Orange Book for Sernivo® Spray. May 24, 2018