Naltrexone
opiate dependence
"Naltrexone is an opiate blocker/craving reducer. It is not a cure. Everyone on here saying they got violently sick I don't understand why these doctors didn't take the right precautions. If you're  on extended opiates bup, methadone. Your suppose to wait 14 days. For normal opiates Heroin, Oxy ect... your suppose to wait 7-10 days. But everyones body is different so if you were a heavy heroin user you possibly could have to wait 2 weeks or on methadone for years then possibly longer. The reason it makes you so sick is it instantly removes all opiates from your receptors. I've personally been taking the pills for over a month and all it does is "reduce cravings" I still have them just not as often and as bad. Good Luck."