Mayne Pharma has completed the acquisition of generic Efudex (fluorouracil cream 5%) from Spear Pharmaceuticals, Inc. for $20.0 million plus contingent payments based on competitive dynamics of as much as $10.0 million. The transaction also includes a long-term supply agreement with the current US-based manufacturer, ensuring supply chain continuity.  Mayne Pharma will begin supply to customers immediately.  Generic Efudex is an antineoplastic topical cream indicated for the treatment of mult...