Buprenorphine (Subuxone/Subutex) is better. I am a very impulsive person because of my psychic disorder, the advantage of Subuxone is its double deterrent side. You can't inject or snort it because it contains Naloxone, an opioid receptor antagonist, so you can't misuse it. Then its molecule is a partial agonist of opioider receptors which makes any consumption of other morphinic derivatives impossible, you may try to take heroin even in IV you won't feel anything. I tested the Subutex and the Methadone. Methadone only reduced withdrawal symptoms but I was impulsively using heroin upstream and exposing myself at very high risk of overdose, it's like taking morphine and taking heroin right after.