The decision means Marais will withdraw from Nine’s upcoming drama, Bad Mothers, which was set to start filming in Melbourne next month.
“Jessica has decided to step away from acting for the remainder of 2018 to focus on her health and spend time with her family,” a statement released by Marais’ management company said.
“She is disappointed that she will not be a part of the Bad Mothers production with such an incredible cast and team behind it, but knows that it is important to take time out to maintain ongoing balance and wellbeing.”
Marais’ role in the drama, which also stars Mandy McElhinney, Shalom Brune-Franklin and Jessica Tovey, will be recast.
Health issues also saw Marais pull out of attending the Logies in July even though she was nominated for the Gold Logie.
The Wrong Girl and Love Child star was admitted to The Sydney Clinic at Bronte in early June, The Sunday Telegraph reported.
According to the facility’s website, the clinic specialises in treating issues such as depression, mood disorders and addictions.
The former Packed to the Rafters star has been open about her battle with mental health issues in the past, telling TV Week: “I just think it’s important to talk about depression.
“It’s nothing to be ashamed of. And the more we talk about it as a community, the more we can remove the stigma.”
Marais didn’t win the Gold Logie at the awards ceremony on the Gold Coast but did win the Silver Logie for Most Popular Actress.
The award was accepted by her Love Child co-star, Miranda Tapsell, whom Marais thanked on Instagram after the event.
“@misstap thanks for being a stylish, eloquent, vixen legend and taking the speech plunge for me, I love you,” Marais wrote.