| levallorphan | <chemical> An opioid antagonist with properties similar to those of naloxone; in addition it also possesses some agonist properties. It should be used cautiously; levallorphan reverses severe opioid-induced respiratory depression but may exacerbate respiratory depression such as that induced by alcohol or other non-opioid central depressants. Pharmacological action: narcotic antagonists. Chemical name: Morphinan-3-ol, 17-(2-propenyl)- (12 Dec 1998) |
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| levallorphan tartrate | 1-N-Allyl-3-hydroxymorphinan tartrate;the N-allyl analog of levorphanol, antagonistic to the actions of narcotic analgesics; used in the treatment of respiratory depression due to overdosage of narcotics. (05 Mar 2000) |