Mueller, 35, was taken to a nearby hospital from her home in Tarzana for an alleged drug overdose, which she initially denied, reported Ace Showbiz.
"Brooke was uncomfortable with the way Adderall was making her behave. Brooke continues her lifelong battle with drug addiction by taking these steps herself to prevent a further drug relapse," said her lawyer Yale Galanter in a statement.
The mother-of-two, who is now in jewelry business, reportedly took the prescription drug more than she should have to help her stay up to finish a deadline for a jewelry order.
This marks the umpteenth time Mueller goes to rehab. Her previous trip to rehab was in May for a 90-day treatment program after she was charged with cocaine possession in February.
