You do however, have way too much methadone to detox off of hydrocodone.
Norco is very week and has a MUCH shorter half life than
methadone. I ended up going to drug rehab and my last dose of methadone was 270mg. I first started using 5mg's to get off of norco and never stopped because it was cheap, available, and didn't have the same drug like side effects of hydro.
Norco withdrawl lasts for 3-5 days with 5 days of getting back to normal.