West Australian Senator and co-deputy leader of the Greens Scott Ludlam announced on November 4 he will be taking leave from his parliamentary duties to deal with long-term depression and anxiety.
In a statement on Facebook, Ludlam said he had been dealing with mental health issues for some time.
"I will return to work as soon as I'm able to give the commitment the work demands,” he wrote.
"I am fortunate to be getting the very best of care from my friends and family and my health professionals.”
Ludlam has been granted a pair until the end of the year.