Known as Jack3d, the pre-training sports supplement is legal in Australia and commonly taken by body builders and weight lifters.

It contains known stimulant 1,3-dimethylamylamine, which is banned by the World Anti-Doping Agency.

A Bowen Basin coal mining company took action by banning the substance after it became known to management that it was being used to reduce fatigue among its workers.

The safety of its employees was the company’s number one priority, a spokesman told ILN.

“The company will follow the advice of medical doctors and the Mines Inspectorate if preventing consumption of a particular substance is required,” the spokesperson added.

A Queensland Government Department of Employment, Economic Development and Innovation spokesman said it was aware of the ban and would be issuing a safety alert in the coming week.

“Queensland’s deputy Chief Inspector of Coal Mines contacted the senior site executive at the mine in question, who informed the inspectorate he had already issued a directive to all employees that the use of Jack3d is banned,” the spokesman said.

“The Mines Inspectorate is preparing a safety alert to be sent to all Queensland Mines, highlighting the risks of using substances like Jack3d.”

While the Queensland Mines Inspectorate is not aware of the supplement being used at any other coal mines, the spokesman said any substance which jeopardises a workers ability to perform their roles is distressing.

“The use of any substance – legally available or not – that could potentially impair the fitness of a worker to safely perform their duties in the workplace is of concern to the Queensland Government Mines Inspectorate,” the spokesman said.