TMZ is reporting that Lindsay Lohan is "hell-bent on making her escape" from the Betty Ford Center after the facility denied her her supply of Adderall, saying she doesn't really need it.

The 26-year-old Lohan claims that she needs the medication for Attention Deficit Hyperactivity Disorder, but doctors at Betty Ford believe that there are other ADHD treatments available that are not as addictive as Adderall.

“I have severe ADD," Lohan told Piers Morgan during an interview last month. "I can’t stand still. So I take Adderall for that, it calms me. I know people who take it to stay up, or girls who take it to supposedly stay slim because it kills your appetite. But I eat all the time. I just take it to stay calm. It works well for me.”

But a source told RadarOnline.com, “Lindsay has been able to eat whatever she has wanted and not gain weight for years and she attributes this to Adderall. Everyone knows that the controversial drug ramps up your metabolism, and can suppress the appetite."

Lohan has been sentenced to complete a 90-day stay at Betty Ford, otherwise she faces jail time.