Naloxone fails to antagonize nitrous oxide analgesia for clinical pain

Jon D Levine¹, Newton C Gordon, Howard L Fields

• ¹Division of Rheumatology, Department of Medicine University of California, San Francisco, Calif. 94143 U.S.A. Division of Oral and Maxillofocial Surgery, University of California, San Francisco, Calif. 94143 U.S.A. Department of Neurology, Schools of Dentistry, and Medicine, University of California, San Francisco, Calif. 94143 U.S.A.