09/10/2010 05:12 am ET Updated May 25, 2011

Lindsay Lohan: Frequent Doctor Shopper

TMZ has learned Lindsay Lohan's dangerous combination of prescription drugs are obtained through "doctor shopping" across the country.

Sources close to Lindsay tell TMZ she would go to six different doctors for prescriptions. One source says, "When one doctor says no to refilling a prescription
, she will go to the next. It's a whole process to get what she needed."

Read more on tmz.com