I found information on Vivitrol, the opiate antagonist shot, to be sparse. I have been administered the shot once a month for the last three months. I was not a week clean when I got it and the rapid detoxification was really quite terrible. I don't recommend this path for anyone. Over the last 3 months with a combination of counseling and AA life has gotten quite better.I have experienced no side effects from the shot. I haven't tried getting high on the shot but it was truly a life saver. I could not stay away from opiates no matter how much I willed myself. I am on the prescription for the next year. Until today I had received the shot every 28 days but this month my schedule slipped to 31 days. I know they say the shot last 30 days so i decided to try getting high as I am getting the shot tomorrow and will fall back into schedule. It worked quite well I must say. Please if you are on Vivitrol DO NOT trying breaking through the blocker before your 30 days is up. Overdoses in this fashion are quite common. Hope everyone is well.