nalorphine

(ˈnæləˌfiːn) n (Pharmacology) an anti-narcotic drug used esp to counteract the effects of morphine poisoning

nal•or•phine

(ˈnæl ərˌfin, nælˈɔr fin)

n. a narcotic antagonist, C₁₉H₂₁NO₃, chemically related to morphine, used to counteract overdose and to diagnose addiction. [1950–55; N-al(lyln)or(mor)phine]

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Noun

nalorphine - a narcotic antagonist (trade name Nalline) that counteracts the effects of narcotics (especially the effects of poisoning by morphine)Nallinenarcotic antagonist - an antagonist used to counteract the effects of narcotics (especially to counteract the depression of respiration)

nalorphine

enUK

nalorphine

(năl`ərfēn), derivative of morphinemorphine,
principal derivative of opium, which is the juice in the unripe seed pods of the opium poppy, Papaver somniferum. It was first isolated from opium in 1803 by the German pharmacist F. W. A. Sertürner, who named it after Morpheus, the god of dreams.
..... Click the link for more information. that acts to reverse the effects of morphine and other narcoticsnarcotic,
any of a number of substances that have a depressant effect on the nervous system. The chief narcotic drugs are opium, its constituents morphine and codeine, and the morphine derivative heroin.

See also drug addiction and drug abuse.
..... Click the link for more information. . It counteracts narcotic-induced nervous system and respiratory system depression but is not effective against depression induced by other sedatives such as barbituratesbarbiturate
, any one of a group of drugs that act as depressants on the central nervous system. High doses depress both nerve and muscle activity and inhibit oxygen consumption in the tissues. In low doses barbiturates act as sedatives, i.e.
..... Click the link for more information. . Nalorphine and other narcotic antagonists are useful in reversing the effects of narcotic overdoses. Because nalorphine causes withdrawal symptoms in addicts, it is administered to apparent ex-addicts to determine if they have returned to drug use. Nalorphine is marketed under the trade name Nalline.

nalorphine

[nal´or-fēn] a semisynthetic congener of morphine, used as an antagonist to morphine and related narcotics and in the diagnosis of narcotic addiction.

nal·or·phine

(nal-ōr'fēn), An early antagonist of most depressant and stimulatory effects of morphine and related narcotic analgesics; precipitates severe withdrawal symptoms in morphine addicts, and counteracts the respiratory depression produced by morphine and related compounds; when administered in the absence of narcotics, nalorphine has mildly analgesic and respiratory depressant effects in nonaddicts; superseded by naloxone hydrochoride. Synonym(s): N-allylnormorphine

nalorphine

A morphine derivative which reversses the activity of morphine and other narcotics. See Opioids.

nalorphine

A narcotic antagonist drug so similar in structure to MORPHINE that it occupies morphine receptor sites on cell membranes and prevents morphine from acting. A small dose of the drug, given to a morphine addict, can induce withdrawal symptoms within a matter of minutes.

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Synonyms for nalorphine

noun a narcotic antagonist (trade name Nalline) that counteracts the effects of narcotics (especially the effects of poisoning by morphine)

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