Michael Douglas 'so proud' of son Cameron’s drug addiction recovery

Cameron Douglas, left, and Michael Douglas attend the world premiere of "The Kominsky Method" during the 2018 AFI Fest at the Egyptian Theatre on Friday, Nov. 9, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)

Renowned US actor Michael Douglas has expressed his pride at his son Cameron Douglas' progress after years of battling drug addiction.

Cameron, 40, struggled with cocaine and heroin addictions and spent time in prison for drug related offences before his recovery, which he details in his memoir Long Way Home.

“He’s doing great, he’s in wonderful shape," Michael, 75, said on SiriusXM’s The Jess Cagle Show. "I’m just so proud. He’s had a rough go of it. Addiction is just a terrible terrible disease. It affects all families.

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"He’s planning on doing speaking engagements. Things are looking up in the future.”

Michael Douglas, Catherine Zeta-Jones and Cameron Douglas attend the Los Angeles Mission Legacy of Vision Gala at Four Seasons Hotel Los Angeles at Beverly Hills on November 9, 2017 in Los Angeles, California. (Photo by Tibrina Hobson/Getty Images)

Michael, who shares Cameron with first wife Diandra Luker, recently revealed he thought he would lose his son to addiction as Cameron shot up cocaine almost daily and suffered drug-induced seizures.

He said: “There were moments when hope dwindled… and then it’s just a train out of the station. Life became a series of crises. I thought I was going to lose him."

Cameron was sentenced to five years behind bars in 2009 for conspiracy to distribute meth and cocaine. He ultimately ended up serving eight years after his sentence was extended for possession while incarcerated.

Cameron Douglas and Viviane Thibes pose at the Michael Douglas Star On The Hollywood Walk Of Fame ceremony on November 6, 2018 in Hollywood, California. (Photo by Gregg DeGuire/Getty Images)

Since leaving prison in 2016, Cameron has welcomed a daughter, Lua Douglas, with his girlfriend Viviane Thiebes.

He's also working on reviving his acting career, having previously starred in films such as Mr. Nice Guy and National Lampoon's Adam & Eve.

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Michael has two other children, Dylan, 19, and Carys, 16, whom he shares with actress Catherine Zeta-Jones.

He recently spoke about his marriage to 50-year-old Zeta-Jones and their 25 year age gap, saying having a younger bride made him "feel good".