I just took my,last dose of norco at 10 this morning. Deff dreading the wds. I have an appt tomm at 2 with a sub Dr. I hope Im able to start on subs by then. Ive never been into wds. Ive been taking Norco and Dilaudid for about three yrs. The past few months I havent tken any dilaudid but have been taking about 7 to 8 Norco a day. With having three small children and husband I want to stop worrying all the time about taking pills just to mAntain my daily activities. How long after your last dose of norco do you wait to take the sub?.Also how long do you have to be on it?