Gold Coast under 20s rugby league player Kurt Foggo has been banned for two years following a positive test to a stimulant.

The NRL anti-doping tribunal imposed the sanction after Foggo was found to have the stimulant dimethylpentylamine (methylhexaneamine) in his system.

The stimulant was detected in an in-competition test by the Australian Sports Anti-Doping Authority (ASADA) on September 10.

Foggo has served a provisional suspension since October 11 and will be able to resume playing on the same date in 2012.

NRL chief executive David Gallop on Wednesday warned all players to take extreme care when taking sports supplements or any substance designed to assist in training.

"Every NRL club has an anti-doping officer and a doctor and it is vital that players properly consult to ensure that they know exactly what they may be taking," Gallop said.

"The cost of making a mistake in this area is a high one for any athlete but the need to retain strong drug policies and strong testing regimes is also fundamental to every sport."

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