Lindsay Lohan is speaking out for the first time about her battle with drugs.

"I tried to mask my problems with alcohol, cocaine and mind-altering substances," Lohan told the London Sun newspaper.

Lohan says she collapsed on the bathroom floor of her house in Los Angeles after taking sleeping pills.

"I'd run a bath and fallen asleep on the floor and the bath had overflowed. When I woke up I was so scared, I called my therapist and said, 'Can I just go somewhere for a month?' " she said.

The 23-year-old actress says her wild child past is now behind her. "I've made some dreadful mistakes but learned from them," she said.