Nearing the end of the Anger Management Tour 3 that began early on this summer, Eminem made a decision to check into a drug rehabilitation center near Detroit. Apparently, the rapper had issues managing another element: sleep medication.

After roughly three weeks in the rehabilitation center and an additional three weeks serviced through the outpatient program, Mr. Marshall Mathers has completed his cycle for patients at-risk of drug abuse. A spokesman for Interscope Records initially stated that “exhaustion and other medical issues” were the causation for Mathers entering the center.

Word has also been aired that Dr. Dre was seen entering Detroit to meet Eminem at the studio. They are expected to be continuing work toward the upcoming Eminem release, Curtain Call, which will serve as a ‘greatest hits’ record. The project is anticipated to hit store shelves in early December amidst the holiday season.

Curtain Call has not yet been chiseled down to a specific playlist; However, expected selections include “My Name Is,” “Stan,” “The Way I Am” and “Lose Yourself” amongst others. This ‘greatest hits’ album is also expected to generate enough sales to push Eminem over 30 million total albums sold in the United States, according to Nielsen SoundScan figures.