1. Onset and offset of intrathecal morphine versus nalbuphine for postoperative pain relief after total hip replacement;Fournier;Acta Anaesthesiol Scand 44(8),2000
2. Brunton LL, Chabner BA, Knollmann BC (2011) Goodman, Gilman's pharmacological basis of therapeutics. (12th edn), The McGraw-Hill Companies, Inc., New York, New York, USA, pp. 481-525
3. Zacny JP, Conley K, Marks S (1997) Comparing the subjective, psychomotor and physiological effects of intravenous nalbuphine and morphine in healthy volunteers. J Pharmacol Exp Ther 280: 1159-1169.
4. The opioid receptor binding of dezocine, morphine, fentanyl, butorphanol and nalbuphine;Chen;Life Sci 52(4),1993
5. De Souza EB, Schmidt WK, Kuhar MJ (1988) Nalbuphine: an autoradiographic opioid receptor binding profile in the central nervous system of an agonist/antagonist analgesic. J Pharmacol Exp Ther 244(1): 391-402.