Brooke Mueller

Brooke Mueller is back in rehab, TMZ reports.

According to the site, Mueller spent the week binging before checking in to an unspecified facility.

Report: Brooke Mueller refuses court-ordered drug test

The news comes days after Mueller refused to take a court-ordered drug test that is part of her child-custody agreement with Charlie Sheen. Refusal constitutes as a failed test.

Mueller has been in rehab twice in the past year.

Sheen and Mueller's divorce was finalized in February and becomes official May 2. They have 2-year-old twin boys, Max and Bob.