Lindsay Lohan will not be allowed Adderall during her time in rehab.

The 26-year-old actress has reportedly said she will only enter a court ordered treatment facility if she is allowed to have the prescription drug - used to treat Attention-deficit/hyperactivity disorder - but a source at Seafield Center in Westhampton Beach, New York, where she has chosen to check in to, insists they don't allow it.

"We are suspicious of Adderall because of its many abuses - lots of people say they take it for ADHD, when they're really using it for weight loss and getting high," an insider said.

While the facility tries to get patients off Adderall and uses other drugs to treat ADHD instead, Lindsay has told friends she has tried other medications but none have worked.