When i had my neck fusion surgery, the Anesthesiologist (who had 35yrs. Experience) had to use so much more narcotics than he EVER used on a patient in his career, plus the amount i was on to begin with, he (he told me the next day) that he and my doctor were freaking out and were really worried about me Overdosing! Neither of them could believe i could handle that amout of narcotics. The doctor told me if 4 of the most seasoned heroine addicts sat around a table with me, and if they split (4 ways) the amount i had during my surgery, it would kill all 4 of them. Then my doctor goes to me "Now do you understand why the Anesthesiologist and I were freaking out?" That was a rather sobering thought to me! Then i went to yet another doctor for Suboxone and last November i got off that crap after almost 4 years of stepping down dosages! I take no meds whatsoever now!! Yippy!!