I've been off Methadone for 2 months (was on it for 4 yrs) and cravings have never came back. As for starting on methadone, it took the cravings a couple weeks to a month to go away. I hated how long I got stuck on Methadone, but I'm still glad I did it. But really your the only one that can make that decision because everyone is different, and there's a million different stories.....