After a cocaine bender last month Oscar winner TATUM O’NEAL has checked into rehab.

RadarOnline.com reported that the Academy Award winning actress for “Paper Moon”, now  48, has battled a drug addiction for most of her adult life.

 Her younger brother, Redmond, who is Farrah Fawcett’s son remains in rehab for an addiction to heroin.

The O’Neal sibs are not in the same facility.

"Tatum made the decision to voluntarily check into rehab after having a relapse about a month ago when she began using cocaine again." an insider divulged.

Tatum, however, is not ata facility wwhich does not utilize the classic 12 step problem which does not bode well for Tatum.

“Someone with Tatum's addiction needs to be at a rehab facility like Betty Ford or Cirque Lodge which adhere to the 12 step model,” the source said.

“Tatum is essentially in denial about how bad her addiction is”.