Bobbi Kristina Brown was addicted to drugs at the age of 14, a new book titled, "Whitney & Bobbi Kristina: The Deadly Price of Fame," claims, according to reports. The book, authored by investigative journalist Ian Halperin, comes just four months after the late Whitney Houston's daughter was hospitalized after being found unresponsive at her home on Jan. 31.

The book reportedly portrays Bobbi Kristina as a “wild child” who used to have suicidal thoughts when she was a teenager,while her mother was consumed by her own drug addiction. The author claims that Bobbi Kristina was only 12 when she first accompanied Whitney to a rehab facility in Antigua in 2005, according to the Daily Mail. And, before the age of 15, Bobbi Kristina was admitted to a psychiatric hospital for observation after she tried to stab her mother before harming herself by slashing her own wrists, the book reportedly says, citing a source.

Whitney died in February 2011 after an accidental drowning in a bathtub in a hotel room at the Beverly Hilton in Beverly Hills, California. The Los Angeles County Coroner had said, citing an autopsy report, in 2012, that "effects of atherosclerotic heart disease and cocaine use" were the reasons for her death.

Halperin reportedly also claims in his new book that much of Whitney’s troubles may have stemmed from her denial for her love for her personal assistant and longtime friend, Robyn Crawford.

Whitney's 22-year-old daughter is currently fighting for her life at the DeKalb Medical facility in Atlanta where she was moved in mid-March after spending weeks at Emory University Hospital. She was found face-down in a bathtub at her Atlanta home, and police officials are conducting a criminal inquiry into the incident.

In March, Steven Stepho -- a friend of Bobbi Kristina from high school -- had claimed that the aspiring actress and her boyfriend Nick Gordon used heroin, Xanax, marijuana and Roxicodone (a prescription narcotic) on a daily basis, according to The Sun.

Multiple sources told TMZ in February that there was a history of violence in the Bobbi Kristina-Nick Gordon relationship, and Gordon has been barred from seeing Bobbi Kristina after her family suspected him of foul play.