Lindsay Lohan’s mother fears the star will overdose and “end up like Heath Ledger”, her ex-husband claimed last night.

Mum Dina Lohan gave the chilling overdose warning in a phone call to the star’s father Michael Lohan - who then released it to a US TV show.

Michael insisted: “She told me she fears Lindsay will end up like Heath Ledger.”

Michael says his daughter “is taking Adderol, Xanax, Paxil” and he is horrified at how drug abuse is destroying his child’s looks.

“She’s a beautiful girl, but she looks 100 years old,” Michael complained.

Michael says he is planning even more desperate steps to force his daughter into seeking life-saving help.

“I am going to go to court to get a legal conservatorship to get Lindsay into rehab and finally get her off all the prescription meds,” he said.

“Dina is going to sit down with me and the lawyers and make things right for Lindsay.

“She is taking Adderol, Xanax, Paxil.”

His actions already sparked a legal battle as Dina was horrified that he would go public with her messages to him.

“He’s getting a cease-and-desist letter. If it’s something personal about your child, you don’t go public with it,” she said.

But Michael defended his decision, insisting drastic action is needed to save Lindsay.