United Therapeutics Corp. is a biotechnology company, which engages in the development and commercialization of products for patients with chronic and life-threatening conditions. The company is headquartered in Silver Spring, Maryland and currently employs 1,168 full-time employees. The company markets and sells commercial therapies to treat pulmonary arterial hypertension (PAH): Tyvaso DPI (treprostinil) Inhalation Powder (Tyvaso DPI); Tyvaso (treprostinil) Inhalation Solution (nebulized Tyvaso), which includes the Tyvaso Inhalation System; Remodulin (treprostinil) Injection (Remodulin); Orenitram (treprostinil) Extended-Release Tablets (Orenitram); and Adcirca (tadalafil) Tablets (Adcirca). Tyvaso DPI and nebulized Tyvaso are also approved to treat pulmonary hypertension associated with interstitial lung disease (PH-ILD). The company also markets and sells an oncology product, Unituxin (dinutuximab) Injection (Unituxin) for treatment of high-risk neuroblastoma, and the Remunity Pump for Remodulin (Remunity). Tyvaso DPI is a drug-device combination product that incorporates the dry powder formulation technology and Dreamboat inhalation device technology used in MannKind’s Afrezza (insulin human) Inhalation Powder.