Commercial

The album debuted at No. 15 on the Billboard 200 with first week sales of the album totaled at 21,204 units,^[10] and that was enough for it to top the Christian Albums chart.^[11]

Critical

More information Review scores, Source ...

Professional ratings

Review scores
Source	Rating
AllMusic	[12]
DaSouth	[13]
Jesus Freak Hideout	[14]
Rapzilla	[15]

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Allmusic rated the album three-and-a-half stars out of five, calling the release a "high-quality set of tracks, just ones that didn’t make it on his 2010 album Rehab." The reviewer tells listeners to "expect the same intense worship and wordplay, but this time with fewer guests, a little less polish, and rough transitions from track to track," but recommends the album "for anyone who devoured the Grammy-nominated Rehab."^[12]

DaSouth rated Rehab: The Overdose four out of five stars, generally praising the album. Though "some tracks feel like they could be leftovers from that album ('Anger Management', 'Strung Out') ... they still find a way to fit into the OD [Overdose] theme," according to DaSouth. They said the album was "very much Biblical," "featuring a few gritty songs plus a handful of laid back ones," and it "starts the year 2011 off well."^[13]

Jesus Freak Hideout also rated the album four out of five stars, calling it "another solid Lecrae release" yet classifying it as "the most mainstream sound Lecrae has attempted" which "can also be said somewhat about his lyrics." The website does note that "the lyrics are still in-your-face-Gospel and they are in no way watered-down." It commends in particular the tracks "Battle Song", "Anger Management", and "Like That"; the latter it claims "is quite possibly the most radio friendly song Lecrae has ever done." In conclusion, Jesus Freak Hideout calls the album "more than deserving of your attention."^[14]

Christian hip hop website Rapzilla again rated Rehab: The Overdose four out of five stars, yet it seemingly praises all aspects of the album. Lecrae's 2011 solo album "invite[s] listeners into another round of musical therapy," referencing the conceptual metaphor of the Christian life being a rehabilitation process that "begins detoxing [Christians] from the things of this world." A trending suggestion throughout the review is that Lecrae sticks closer to his concept in Rehab: The Overdose compared to its prequel Rehab as the reviewer believes that "listeners who complained about the lack of theme-driven songs or the musically-schizophrenic nature of Rehab will be overjoyed by the sonic and thematic cohesiveness of Rehab: The Overdose," and claims that "the first thing the listener will notice is that this album is thematically much more cohesive than its predecessor [Rehab]." The review also notes Lecrae's development as a lyricist, specifically commending the songs "Overdose" ("which finds Lecrae lyrically-fit"), "Battle Song" ("a stellar track ... where Lecrae spits ferociously"), "Chase That", and "Walking On Water" (which "features an especially ridiculous flow and rhyme scheme from Crae"). In conclusion, Rapzilla calls the full album "much more than mere leftovers from Rehab; it is a fresh helping of Gospel-centered goodness that will keep listeners' palates satisfied for a long time to come."^[15]