Lindsay Lohan Lindsay Lohan

Lindsay Lohan is telling friends that she absolutely can't complete her 90-day mandated rehab stint at the Betty Ford Center because doctors there will not allow her to keep taking Adderall, TMZ reports.

Lohan maintains that she uses the drug because she has ADHD, but doctors at the clinic evaluated her this week and decided that she does not need the incredibly addictive amphetamine, which many people use to combat weight gain, according to TMZ. The news didn't sit well with Lohan, who is telling friends that she needs to be moved to another facility that would allow her to use Adderall, the site says.

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The Betty Ford Center is the second facility Lohan has checked in to for her mandatory rehab. She left the first, Morningside Recovery in Newport Beach, Calif., after only a few minutes.