Love, 39, was found early Thursday outside a Los Angeles home where she had allegedly broken the windows in an attempt to enter the friend's house, police spokesman Don Cox said.
She was arrested and booked for investigation of using illegal drugs, posted $2,500 bail and was released.
Hours later, police and paramedics in Beverly Hills responded to an emergency call and took a woman to a hospital for treatment, according to a story in Friday's editions of the Los Angeles Times.
Law enforcement sources told the newspaper that the woman was Love and that she had overdosed. The newspaper said she was not at the hospital later in the day.
Messages left for Love's publicist and her lawyer were not returned late Thursday.
Love is the widow of Nirvana frontman Kurt Cobain, who committed suicide in 1994, and lead singer of the rock group Hole. She received a Golden Globe nomination for her role in the 1996 movie "The People vs. Larry Flynt."
Love was arrested earlier this year in London for allegedly verbally abusing cabin staff on a Virgin Atlantic flight from Los Angeles. She was later released. She was also mentioned in December when a Beverly Hills physician was stripped of his medical license by the California Medical Board for prescribing addictive drugs on a cash-and-carry basis to celebrities.