what is nubain
drug description nubain nalbuphine hydrochloride is a synthetic opioid agonist antagonist analgesic of the phenanthrene series it is chemically related to both the widely used opioid antagonist naloxone and the potent opioid analgesic oxymorphoneubain nalbuphine hydrochloride is a sterile solution suitable for subcutaneous intramuscular or intravenous injection