Skip to main content

U.S. Paralympic Boccia Athlete Marck Harrison Accepts Public Warning

USADA Logo

Press Release

30th January 2018

USADA announced today that Marck Harrison, of Columbus, Ohio, an athlete in the sport of Paralympic boccia, has accepted a public warning for failing to obtain a Therapeutic Use Exemption (TUE) prior to his use of an otherwise prohibited medication. Harrison’s violation resulted from his use of a prescription medication containing chlorthalidone – a prohibited substance on the World Anti-Doping Agency Prohibited List – which he was using under the care of a physician. Harrison, 38, had forthrightly declared the use of his medication on his doping control form at the time of sample collection and subsequently obtained a TUE authorizing future use of this medication in sport.

Upcoming Events

Sports Stadia Development 2026

Sports_stadia_develpoment_image
11-03-2026 13:00 -19:00

Motorsport Law 2026

Motorsport Law Conference 2026 Title Imagery
19-03-2026 9:00 -18:00

Football Law 2026

Football_Law_2026
12-05-2026 16:00 - 13-05-2026 20:00