My son was given a long-acting intramuscular shot of Invega Sustenna several years ago. Within days he was desperate to find an antidote (which of course is impossible). He was bedridden for months, and applied for disability, which was eventually approved. He kept asking me to go on line and find out if anyone ever recovers from the shot. What I found on line was depressing and surprisingly common. I found a website called bluelight . org, a web forum which focuses on harm reduction of drug use. One of the longest running, most active discussions was about Invega Sustenna. The misery and despondency of the posters was depressing to read. I am mystified how such a dangerous medication could ever be approved.