Ligand Pharmaceuticals, Inc. is a biopharmaceutical company, which engages in the development and acquisition of technologies that help pharmaceutical companies to discover and develop medicines. Its products include evomela, IV voriconazole, duavee, viviant/conbriza, nexterone, and noxafil-IV. The company was founded by Ronald M. Evans in 1987 and is headquartered in San Diego, CA.