Amanda Bynes Under 100 Pounds, Suspected Of Abusing Prescription Medication Before Psychiatric Break

Amanda Bynes was down to under 100 pounds when she was hospitalized and put on a 5150 psychiatric hold, RadarOnline.com has learned. The She's The Man actress, 36, reportedly suffered extreme weight loss before her psychiatric break, with sources suspecting she was abusing prescription medication.

Bynes was allegedly experiencing “startling and dramatic weight loss over the last few months,” with insiders telling The Blast she no longer weighed in the double digits.

The ex-Nickelodeon starlet has a history of Adderall use, although it has not been confirmed if she was taking the medication — or any — during her latest episode.

As RadarOnline.com reported, Bynes was hospitalized on a 5150 psychiatric hold after she was found roaming around Los Angeles without any clothes on.

The incident happened on Sunday, with Bynes allegedly flagging down a car and telling the good samaritan she was coming down from having a psychotic episode.

The actress reportedly called 911 herself and was taken to a nearby police station, where mental health professionals determined she needed to be placed on a 5150 hold.

Bynes will reportedly continue to get help from professionals for the next few days.

Her hospitalization comes just hours after she pulled out of an appearance last minute. Bynes was supposed to join her former All That costars at the '90s Con this past weekend, but she failed to show due to an undisclosed illness.

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Bynes' latest psychotic break happened almost one year after her 9-year conservatorship was terminated. The Easy A star was placed under conservatorship in August 2013 following a string of bizarre incidents, including almost lighting her dog on fire.

RadarOnline.com has reached out to Bynes' lawyer for comment.