Brooke Mueller has left rehab.

The former wife of Charlie Sheen - who was undergoing her 19th attempt at beating drug addiction - checked out of the treatment facility after just six days on Sunday (16.12.12).

According to gossip website TMZ, Brooke, 35, is undergoing ''ongoing psychological outpatient treatment'' and is ''feeling much better,'' after a suspected overdose on prescription medication Adderall before being admitted to rehab.

Brooke's three-year-old twins with Charlie, Bob and Max had been staying with Charlie's second wife Denise Richards because Brooke had fired her nanny, but are now being looked after by the troubled star's family.

In June, Charlie, 47, urged Brooke to check herself into rehab after he became concerned about her when she reportedly appeared ''out of it'' during a visit to his home.

A source close to Brooke said at the time, she ''partied for four days straight ... and ultimately fell off the wagon''.

The insider added: ''Brooke's family is hoping that she finally understands the consequences of her actions. That is, she risks losing all of her rights to the children if she doesn't get clean - once and for all.''