Amanda Bynes doesn't have schizophrenia.

The troubled actress, who completed psychiatric treatment in December following a series of public outbursts, has asked her lawyer, Tamar Arminak, to shoot down rumors claiming she suffers from the mental disorder.

"There has been much speculation about Amanda's medical condition. She has remained silent because she believed it was best to keep her mental health diagnosis private. However, she asked me to dispel certain rumors. For the record, Amanda does not have schizophrenia, nor has she ever been diagnosed with it," Arminak said, speaking to People.

The attorney also claims the 28-year-old star, who chucked a marijuana bong out the window of her apartment in New York City last May, has never abused drugs or alcohol and she quit cannabis nine months ago. "She's devoted to living her life as healthy as possible. She's never had a history of abusing alcohol or hard drugs, and she's proud to say she's been marijuana-free for the past nine months," he explained.

The Sydney White actress, who was arrested last July after setting a small fire outside an elderly woman's home in Los Angeles, is now hoping to rebuild her life and has become a student at the Fashion Institute of Design & Merchandising (FIDM). "She's a great student who always participated and really cared about her classes. She really fit in and loves her school," a source said previously.