I dont know for sure, and I hate to be a downer, however, when I came off methadone, I did not start getting sick until day 4 and by day 5 I thought I would die. That lasted
for months. I know methadone is different, but maybe fentanyl
or dilaudid have a long
half life also??????? Then again, everyone is different, and every time you withdrawl it is different. Maybe because you have only been on it for 4 months is the reason why it is not so bad for you this time?????????