Sport Integrity Australia ruled the one-month period be backdated to the date of his provisional suspension meaning he will be able to return to training and competition on January 1.
Penrith chief executive Brian Fletcher said Naden is expected to return to pre-season training next week.
“Our club acknowledges the penalty handed to Brent Naden by the NRL in relation to his use of a recreational drug,” he said. “Brent has come to understand the significant impact of his actions on his family, our club and the game of rugby league.
“He similarly understands how fortunate he is to have the opportunity to return to the NRL in 2021.”
Fletcher said Naden was “continuing to work” through his personal issues.
“We anticipate he will return to Panthers pre-season training following the completion of his suspension,” Fletcher said.
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