Lamar Odom Suffers Setback, Khloe Cancels Book Tour To Be With Him

With that said, Khloe Kardashian has vowed to be by Lamar Odom's side and help him recover, even going as far as to call off her romance with James Harden.

Authorities believe Lamar Odom may have overdosed on cocaine and other drugs based on what prostitutes told them of that night spent in his room at a Nevada brothel, according to a search warrant reviewed by BuzzFeed News.

The 31-year-old Kardashian sister and reality star has reportedly been by Odom's bedside since earlier this month, when he was found unconscious at a Vegas-area brothel.

The former Los Angeles Lakers player was discharged from the Sunrise Hospital & Medical center Monday evening and transported to a Los Angeles-area hospital by helicopter to continue his recovery.

"She sleeps in the ICU with him", the source says.

Police also cited Odom's "prior history of illicit narcotics use" and that Odom's personal assistant indicated he "has actually witnessed Mr. Odom under the influence of narcotics". I am so thankful to family, friends and fans, who have sent nothing but prayers and well wishes to Lamar.

'Khloe hates to cancel or reschedule anything when it comes to work, but right now, her number one priority is getting Lamar back to good health, ' a source told ET. Still legally his wife, Khloe was given responsibility to make decisions regarding Odom's medical care.

Khloé is also said to have called off her divorce from basketball star Lamar.

On Thursday Chris Rock tweeted a controversial joke about Lamar Odom's recent Love Ranch South Brothel stay and subsequent hospitalization.

On October 21, the Kardashian's lawyer asked an L.A. judge to withdraw the couple's divorce filing.

While Odom would likely turn to family for a donation first - you have to be a blood match and pass various tests - the outpouring of support leaves him luckier than most patients in need of a new kidney.