Ariarne Titmus has spoken out against the doping-fuelled Enhanced Games on the day it emerged swimming’s global governing body had taken action against anyone involved in the event.

The Australian legend’s former teammate James Magnussen, a three-time Olympic medallist, was the controversial concept’s most visible figure prior to its launch last month.

The 34-year-old last year declared he would “juice to the gills” in an attempt to chase a promised $US1 million ($A1.5m) for anyone who broke a world record.

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He fell short but Kristian Gkolomeev, a four-time Olympian only months removed from competing at Paris 2024, used performance-enhancing drugs and an open-water suit to swim faster than the official 50m freestyle world record.

Criticism ramped up after organisers released results and footage, including images of Magnussen after his first round of doping.

Sport Integrity Australia “condemned” the idea as “dangerous, unethical and damaging to sport” while issuing a health warning to Aussie athletes considering the doping path.

Australian swimming’s leading champion has also now taken a stand.

“It doesn’t sit well with me. I think about what message is this sending kids around the world? That it’s okay to take performance-enhancing drugs? I firmly believe that it’s not,” Titmus said on Triple M’s Mick in the Morning.

“I don’t think it’s a good thing to do. We don’t know exactly the implications of taking these amounts of performance-enhancing drugs are going to have on our body, and morally, I don’t agree with it.”

Dual Australian Olympic swimmer Brett Hawke is also involved in Enhanced Games as its top coach.

While they have committed to the breakaway event, Hawke, Magnussen and Gkolomeev now face being banished from returning to organised professional swimming in the future.

World Aquatics on Tuesday announced a new bylaw aimed squarely at Enhanced Games participants.

“Those who enable doped sport are not welcome at World Aquatics or our events,” World Aquatics president Husain al-Musallam said in a statement.

“This new bylaw ensures that we can continue to protect the integrity of our competitions, the health and safety of our athletes, and the credibility of the global aquatics community.”

Al-Musallam urged member federations — such as Swimming Australia — to “adopt similar policies at the national level”.

The new rule targets those who “support, endorse or participate in sporting events that embrace the use of scientific advancements or other practices that may include prohibited substances and/or prohibited methods”.

Anyone affected would be ineligible to participate in a World Aquatics competition or event or hold a position with the global governing body.

“This ineligibility would apply to roles such as athlete, coach, team official, administrator, medical support staff, or government representative,” World Aquatics said.

While the president was unequivocal, a swimmer or other individual will only be formally banned if and when they attempt to register to be involved in a World Aquatics event.

World Aquatics’ announcement would put paid to Magnussen’s hope for active swimmers to join Enhanced Games on the side without taking part in doping.

Australian Olympic gold medallist Cam McEvoy has sided with clean sport and was subsequently urged by his former teammate and rival to cash in with an Enhanced Games appearance.

“It’s a big opportunity for any athlete,” Magnussen told AAP.

“You don’t have to be an enhanced athlete to compete at the (Enhanced) Games.

“Cam McEvoy could come from clean sport to the Enhanced Games, put on a supersuit and go very close to that world record without any enhancements.

“He would then be racing for $US1 million, so $A1.6 million, in a year’s time rather than waiting three years until the LA Olympic Games to race for $30,000.

‘They’re quite different propositions.”