KINGSTON, Jamaica — Efforts to take Bobbi Kristina Brown, daughter of the late Whitney Houston, out of her medical induced coma has suffered a setback, US media are reporting.

Reports are that 21-year-old Brown started having seizures as soon as doctors tried taking her off various medications forcing them to keep her on them.

It is almost a month now since brown has been in a coma, after being hospitalised January 31, having been found face down and unconscious in a bathtub at her Georgia home.

Meanwhile, her estranged boyfriend, Nick Gordon, has voiced his anger on social media networking site Twitter, after continuously being barred from visiting her.

“My heart is full of anger after the Browns have shut me out,” he tweeted Wednesday evening. “They don’t even know her. Sabotage.”

Gordon added, “I miss her so much. I seem so weak right now. You all have been so supportive! Thank you for everything.”

The family attorney, however, said “there is no reason for any additional discussion with” Gordon.