PRESS RELEASE

SILVER SPRING, Md. and RESEARCH TRIANGLE PARK, N.C., Sept. 18, 2018 /PRNewswire/ -- United Therapeutics Corporation (NASDAQ: UTHR) announced today that it will host Science Day 2018 in New York City on Monday, September 24^th, beginning at approximately 10:00 A.M. Eastern Time and ending at approximately 4:00 P.M. Eastern Time.

Science Day 2018 will include a series of science-centric presentations by clinicians, industry leaders as well as senior leadership of United Therapeutics taking a deep dive into our balanced, value-creating research and development pipeline.

Attendance in-person is by invitation only; however, the event will also be webcast live and can be accessed on the United Therapeutics website at http://www.unither.com under the "Investors" tab in the "Events and Presentations" section. An archived, recorded version of the presentation will be available approximately twenty-four hours after the event ends and can be accessed at the same location for 90 days. [uthr-g]

About United Therapeutics

United Therapeutics Corporation is a biotechnology company focused on the development and commercialization of innovative products to address the unmet medical needs of patients with chronic and life-threatening conditions.

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SOURCE United Therapeutics Corporation