“I have always been transparent about my journey with addiction,” she wrote on Instagram on Monday morning (Sunday US time).
“What I’ve learned is that this illness is not something that disappears or fades with time. It is something I must continue to overcome and have not done yet.”
The former Disney star thanked God for “keeping me alive and well” as well as her family, friends, fans and the team at Cedars-Sinai Medical Centre, Los Angeles for their support.
“I now need time to heal and focus on my sobriety and road to recovery.”
On Tuesday, July 24 TMZ reported the 25-year-old was taken to a Los Angeles hospital from her home in the Hollywood Hills.
According to NBC, the star was “stable and alert and breathing” after being administered an overdose reversal medication.
Early reports stated Lovato had suffered a heroin overdose, but this has not been confirmed, with suggestions the cause was another narcotic.