JOHANNESBURG - South African doping control statistics show the use of performance-enhancing drugs has increased by 19 percent, the South African Institute for Drug-Free Sport said on Saturday.
The institute said new testing methods are making it easier to detect designer drugs in doping athletes.
In the latest scandal, 2012 Comrades Marathon winner Ludwick Mamabolo failed a doping test.
Mamabolo now faces being stripped of his title.
He tested positive for the banned substance methylhexaneamine.
The institute's CEO Khalid Galant said athletes must be aware of the risks.
“We have a very extensive list of on our website, Blackberry and iPhone app, where athletes can reference substances in sport.”
Mamabolo has not been stripped of his title pending the probe into the allegations.
He has been provisionally suspended from all sport until he is cleared.
(Edited by Zethu Zulu)