Partial antagonism of placebo analgesia by naloxone.

  title={Partial antagonism of placebo analgesia by naloxone.},
  author={Priscilla Grevert and Leonard H. Albert and Avram Goldstein},
  volume={16 2},
Thirty subjects were given a placebo (intravenous saline), which was described as a known pain killer, once a week for 3 consecutive weeks. Experimental ischemic arm pain was produced prior to the placebo and again 1 h later. In a double blind procedure, half of the subjects received 10 mg of naloxone after placebo; the remaining subjects received naloxone vehicle. In addition to the placebo session, there were control and naloxone sessions each week to determine the normal changes in pain and… CONTINUE READING