Mischa Barton's recent fail came after a three-day cocaine overdo, according to reports.
On Thursday, the 23-year-old was placed on involuntary psychiatric hold after apparently pain a meltdown and calling cops to her Los Angeles home the day before.
According to New York Post gossip column Page Six, friends of the former The O.C. star alerted police amid fears she would kill herself after three days of hard partying.
A pal tells the newspaper, "She's in very bad figure. She's running out of money and can't find love, so now she is looking for a good time to escape her misery. She is on a downward spiral. She is a mess. She is a suicidal, uninsurable mess."
Los Angeles police and Barton's representative have confirmed the actress required assistance for "a medical issue", but have yet to reveal further details.
