UK Anti-Doping have suspended Oldham Rugby League player David Cookson for six months after he was found guilty of breaching the RFL’s anti-doping regulations.

Cookson was found to have provided a sample containing the stimulant methylhexaneamine, a Specified Substance on the WADA Prohibited List which means that it is susceptible to inadvertent use.

Cookson’s suspension began on August 31, 2012 and ends on February 28, 2013.

The RFL advise all players to be aware of methylhexaneamine, which has been the cause of a number of positive tests throughout the world. Methylhexaneamine is commonly referred to by a number of alternative names including, but not limited to, forthan, forthane, floradrene, geranamine, dimethylamylamine, DMAA, dimethylpentylamine, 1,3-dimethylamylamine or geranium oil.

All players are advised to assess the risk associated with supplements, and to take steps to minimise the risk. Players are encouraged to use a risk minimisation tool such as www.informed-sport.com