The 26-year-old is reported to have taken the decision after the supply of Addy pills was cut-off by the doctors at the Center, reported TMZ.
The doctors have decided to stop her medication despite Lohan's claims that she suffers from ADHD (Attention Deficit Hyperactivity Disorder).
Betty Ford's doctors believe that there are plenty of other substitute medicines for ADHD that would help her without the addictive qualities inherent in the drug.
The doctors are well aware of the fact that the drug is misused as a weight-control measure.