"Karmichael Hunt is cooperating fully with the Rugby Australia Integrity Unit and Queensland Rugby Union investigation and, given that this is an ongoing police matter, there will be no further comment."
It's the second time in three years Hunt has been charged for drug-related offences, having been fined $2500 after pleading guilty to four counts of drug possession in March 2015.
Hunt's lawyer Adam Magill said his client was devastated.
"He is very upset, as anyone would expect, and pretty much inconsolable," Mr Magill told Fairfax Media.
"He is sticking with his family. He's got concerns and his manager is taking care of him."
Hunt, a former NRL and AFL player who joined the Reds at the end of 2014 shortly before his previous run-in with the law, made his Wallabies debut in June and has represented Australia in six tests, earning a two-year contract extension in November.
That contract now appears to be in jeopardy depending on the outcome of the case.
A second man who was with Hunt has also been charged with drug-related offences.