Western Australian boxer Kylie Fulmer was slapped with a six-month ban for using a controversial stimulant that is now illegal throughout Australia.

The Australian Sports Anti-Doping Authority (ASADA) on Thursday confirmed Boxing Australia's decision to suspend Fulmer for using a prohibited substance.

Fulmer tested positive for methylhexaneamine on February 3 while competing in the 57kg division at the Australian Boxing Championships in Hobart.

Boxing Australia backdated the ban to the date of her provisional suspension, meaning she will be eligible to compete on November 17.

The Australian Department of Health banned the sale, supply or use of the stimulant from August 1 because of its known potential health effects.

Methylhexaneamine can act directly on the central nervous system to speed up parts of the brain and body to increase alertness and reduce fatigue.