Whitney Houston's daughter with Bobby Brown, Bobbi Kristina, was hospitalized not once, but twice within 12 hours following Houston's untimely death. Radar Online reports that the 18-year-old was hospitalized late last night -- and that the substances that may have killed her mother might be to blame for her own duress. Initial reports stated Bobbi Kristina was hospitalized this afternoon. While those reports are true, this afternoon wasn't Bobbi Kristina's first trip to the ER. She was also rushed to the hospital just after midnight when she mixed a potentially deadly cocktail of prescription sedatives with actual cocktails.

"She tried to ease the pain of losing her mother by having a few alcoholic drinks," a source told Radar Online. "She was distraught, on the verge of a complete breakdown. Not knowing what to do, members of her mother's entourage tried to calm her down with a sedative. The two were an unfortunate mix and she ended up passing out."

Bobbi Kristina's dangerous mix eerily echoes what is suspected to have taken her own mother's life. Though an autopsy and toxicology report have yet to be complete nor released, sources say Houston likely took a potentially lethal mix of Xanax and alcohol, resulting in her falling asleep or unconscious in her Beverly Hilton bathtub and drowning. Bobbi Kristina got into a screaming match with authorities last night when they refused to let her see her mother’s body before she left the hotel's premises.

Bobbi Kristina was also taken to Cedars-Sinai in Los Angeles this afternoon, allegedly for "stress." We can't even begin to imagine what she's going through. It's a good thing her father, Bobby Brown, is canceling his Nashville gig to be with her. She, and the rest of Houston's friends and family, are in our thoughts during this extremely difficult time.