Auxilium Pharmaceuticals, Inc. is a specialty biopharmaceutical company focuses on developing and marketing products to predominantly specialist audiences. It market two products: Testim testosterone gel and XIAFLEX (collagenase clostridium histolyticum). XIAFLEX is an injectable clostridial collagenase enzyme approved by the United States Food and Drug Administration (FDA) for the treatment of Dupuytren's contracture (Dupuytren's) in adult patients with a palpable cord. Its Testim is a topical 1% testosterone once-a-day gel that treats hypogonadism by restoring normal testosterone blood levels for a 24-hour period following application and sustaining them in that range when used daily. Testim has been approved for marketing for the indication of male hypogonadism in the United States, Canada, Belgium, Denmark, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden and the United Kingdom. In April 2013, it acquired Actient Holdings LLC.