Amanda Bynes was arrested for a DUI over the weekend and new reports reveal she was under the influence of Adderall.

Nick Cannon Pens Open Letter To Amanda Bynes

TMZ reported on Tuesday that the drug, often used to treat attention deficit hyperactivity disorder, was prescribed by a doctor. The actress reportedly took the drug before she was pulled over and failed several sobriety tests.

The websites noted that Bynes was "out of it" at the time she was pulled over. Aside from reckless driving, the 28-year-old also has to deal with a probation violation.

Amanda Bynes Gets Arrested, More Details

Additionally, Bynes recently moved out of her parents' house and they claim to be in the dark about her whereabouts. The couple said they didn't bail their daughter out of jail and discovered her latest legal woe from the media.

The actress, who appeared to be doing well while living with her parents and attending the Fashion Institute of Design and Merchandising, is reportedly smoking marijuana and not taking her medication for Schizophrenia and bipolarity.

The latest arrest comes more than a year after Bynes was placed under an involuntary 5150 psychiatric hold for starting a fire in a neighbor's driveway last year. Yet, her bizarre behavior started months prior when she was spotted with an entirely new look and often engaged in Twitter wars with other celebrities. For example she told supermodel Chrissy Teigen on Twitter last May, "Ur not a pretty model compared to me. I signed to Ford models @ age 13. I don't look up to u beauty wise. I'm far prettier than u!"

Tags: Amanda Bynes