Triathlete receives sanction

18 September 2019

The Australian Sports Anti-Doping Authority (ASADA) today acknowledged the decision of International Triathlon Union (ITU) Anti-Doping Hearing Panel to impose a 12-week ban on athlete Margo Mackintosh for the presence of a prohibited substance.

On 27 April 2019 during the 2019 ITU Multisport Triathlon Event in Pontevedra, Spain, Ms Mackintosh provided a urine sample which returned an Adverse Analytical Finding (AAF) for the Prohibited Substance Higenamine.

Higenamine is a S3 class Beta-2 Agonist (these types of substances allow the lungs to take in more oxygen) and is prohibited in- and out-of-competition. However, as a cardiotonic, higenamine can increase heart rate, putting an athlete at an increased risk of arrhythmias and even death.

The International Triathlon Union (ITU) Anti-Doping Panel imposed a 12 week ban on Ms Mackintosh commencing on 27 April 2019.

Ms Mackintosh was eligible to return to competition on 1 August 2019.

ASADA is committed to protecting the right of clean athletes to fair competition. If you are aware of any suspicious doping activity, you can report it anonymously via the ASADA website: or call us on 13 000 27232.

ASADA recommends you check all your substances before you take them on the ASADA Clean Sport app. For more information visit: ASADA tech.