Bobbi Kristina Brown used drugs weeks before she was found unresponsive

Bobbi Kristina Brown was abusing drugs before she was found unresponsive in a bathtub at her Georgia home on January 31, People magazine reported.

Like her doomed mother Whitney Houston, Bobbi Kristina Brown, 21, was regularly taking heroin, cocaine and Xanax in the months before she was rushed to a Georgia hospital last month, the outlet reported.

Xanax was one of the drugs found in Whitney Houston’s system after she drowned in a bathtub at a Beverly Hills hotel three years ago.

A source told the magazine that Bobbi Kristina Brown, in the weeks before the tragedy at her home in Roswell, Georgia, was “distraught” about the coming third anniversary of her mother’s death.

Bobbi Kristina Brown was also in and out of rehab for her demons – including heavy drinking – since Whitney Houston’s death, the source indicated.

She was hospitalized for depression almost immediately after Whitney Houston passed away.

Toxicology reports on Whitney Houston showed the singer had marijuana, Xanax, the muscle relaxant Flexeril and the OTC medication Benadryl in her system at the time of her death.

Bobbi Kristina Brown remains in a medically-induced coma at Emory University Hospital in Atlanta three weeks after she was discovered by her boyfriend Nick Gordon.