PARSIPPANY, N.J. — The Food and Drug Administration has approved a generic drug for heavy menstrual bleeding made by Watson Pharmaceuticals, the drug maker said Thursday.
Watson announced the approval of tranexamic acid tablets through a subsidiary and plans to ship it immediately. The drug is a generic version of Ferring Pharmaceuticals' Lysteda.
Ferring has filed suit against Watson, alleging that the generic drug infringes two of its patents. Lysteda had sales of about $25 million during the 12-month period that ended in November, according to IMS Health.