... problem and seems to be working. so, time to go off of the opana. went to an addiction dr. since my pcp who prescribed opana seems clueless to the weaning problem. i am to start taking suboxone today after going into moderate withdrawal. i was taking 40 mg of opana a day and am supposed to take 2mg of sub four times a day. so far am anxious and nervous. i am about 6 hrs past time to take opana. can someone tell me how long i have to wait? did read the opiod withdrawal form. am i really going to have all those symptoms? so far after 6 hours just the nervous, anxiousness. can anyone advise me?? thank you.