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Organization and Business Description	12 Months Ended
Organization and Business Description	Dec. 31, 2013
Organization and Business Description
Organization and Business Description	1. Organization and Business Description United Therapeutics Corporation is a biotechnology company focused on the development and commercialization of unique products to address the unmet medical needs of patients with chronic and life-threatening conditions. As used in these notes to the consolidated financial statements, unless the context otherwise requires, the terms "we", "us", "our," and similar terms refer to United Therapeutics Corporation and its consolidated subsidiaries. We have approval from the United States Food and Drug Administration (FDA) to market the following therapies: Remodulin® (treprostinil) Injection (Remodulin), Tyvaso® (treprostinil) Inhalation Solution (Tyvaso), Adcirca® (tadalafil) tablets (Adcirca) and, since December 2013, Orenitram™ (treprostinil) Extended-Release Tablets (Orenitram). We expect to launch Orenitram sales in the United States in mid-2014. Remodulin has also been approved in various countries outside the United States.