I am trying to take some norco today but last night I took 15 mg of Methadone (first time taking methadone in a few months), and I heard that it can block any other opiate high? I usually take around 100 mg of Hydrocodone (10 norco) for a decent high. I'm wondering if I will get any hydrocodone effects if I take around ten Norco about 16 hours after I took the Methadone? If so, will the hydrocodone effects not be as strong? Please give me experienced or educated answers! I don't know much about Methadone, so detailed answers would be very helpful! Thanks.