narcotic

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narcotic

 [nahr-kot´ic]
1. pertaining to or producing narcosis.
2. an agent that produces insensibility or stupor, applied especially to the opioids, i.e., to any natural or synthetic drug that has actions like those of morphine. See also drug abuse.

nar·cot·ic

(nar-kot'ik),
1. Originally, any drug derived from opium or opiumlike compounds with potent analgesic effects associated with both significant alteration of mood and behavior and with potential for dependence and tolerance.
2. More recently, any drug, synthetic or naturally occurring, with effects similar to those of opium and opium derivatives, including meperidine, fentanyl, and their derivatives.
3. Capable of inducing a state of stuporous analgesia.
[G. narkōtikos, benumbing]

narcotic

/nar·cot·ic/ (nahr-kot´ic)
1. pertaining to or producing narcosis.
2. an agent that produces insensibility or stupor, especially an opioid.

narcotic

(när-kŏt′ĭk)
n.
a. A drug, such as morphine or heroin, that is derived from opium or an opiumlike compound, relieves pain, often induces sleep, can alter consciousness, and is potentially addictive.
b. A controlled substance.
adj.
1. Inducing sleep or stupor; causing narcosis.
2. Of or relating to narcotics, their effects, or their use.
3. Of, relating to, or intended for one addicted to a narcotic.

nar·cot′i·cal·ly adv.

narcotic (narc)

[narkot′ik]
Etymology: Gk, narkotikos, benumbing
1 adj, pertaining to a substance that produces insensibility or stupor.
2 n, a narcotic drug. Narcotic analgesics, derived from opium or produced synthetically, alter perception of pain; induce euphoria, mood changes, mental clouding, and deep sleep; depress respiration and the cough reflex; constrict the pupils and cause smooth muscle spasm, decreased peristalsis, emesis, and nausea. Repeated use of narcotics may result in physical and psychological dependence. Among the narcotic drugs administered clinically for relief of pain are butorphanol tartrate, hydromorphone hydrochloride, morphine sulfate, pentazocine lactate, and meperidine hydrochloride. These drugs act by binding to opiate receptors in the central nervous system; narcotic antagonists such as naloxone hydrochloride, which is used in treating narcotic overdosage, apparently displace opiates from receptor sites. The term is now often used to refer to any illicit drug, and its use is therefore discouraged in medical settings. Opioid is now the preferred term.

narcotic

Substance abuse A substance causing euphoria and analgesia at the desired abuse levels and physical dependence and CNS depression, stupor, coma and death in excess. See Opiates.
Narcotic types
Natural Products extracted from the poppy plant, yielding morphine and heroin, or the coca plant, yielding cocaine and crack
Semi-synthetic Products with opiate activity, eg meperidine and methadone or synthetics, see MPTP; under the umbrella term of narcotic, alkaloids, eg LSD, mescaline, barbiturates, alcohol, marijuana, cocaine, hallucinogens and stimulants, eg antidepressants.
Completely synthetic Products created by synthesis alone, eg fentanyl  

nar·cot·ic

(nahr-kot'ik)
1. Any drug derived from opium or opiumlike compounds with potent analgesic effects associated with both significant alteration of mood and behavior and potential for dependence and tolerance.
2. Any drug, synthetic or naturally occurring, with effects similar to those of opium and opium derivatives.
3. Capable of inducing a state of stuporous analgesia.
[G. narkōtikos, a benumbing]

narcotic

A drug which, in appropriate dosage, produces sleep and relieves pain. Overdosage of narcotics may cause coma and death. Most narcotics are derived from opium or are synthetic substances chemically related to morphine.

narcotic

any chemical substance that induces a state of stupor or unconsciousness, such as opium.

Narcotic

A drug derived from opium or compounds similar to opium. Such drugs are potent pain relievers and can affect mood and behavior. Long-term use of narcotics can lead to dependence and tolerance.

narcotic,

n substance that relieves pain, induces sleep, and calms the body. Harmful and highly addictive if used repeatedly or in high doses.

nar·cot·ic

(nahr-kot'ik)
1. Any drug, synthetic or naturally occurring, with effects similar to those of opium and opium derivatives, including meperidine, fentanyl, and their derivatives.
2. Capable of inducing stuporous analgesia.
[G. narkōtikos, a benumbing]

narcotic (närkot´ik),

n/adj a drug, usually with strong analgesic action and an addiction potential, that may be synthesized or derived from natural sources. Especially one of the opium alkaloids.

narcotic

1. pertaining to or producing narcosis.
2. a drug that produces insensibility or stupor.
In veterinary medicine the term narcotic includes any drug that has this effect, but care is needed to avoid confusion with the more common usage of the word to mean the habit-forming drugs—for example, opiates such as morphine and heroin, and synthetic drugs such as meperidine. These can be legally obtained for use in animals only with a veterinarian's prescription. The sale or possession of narcotics for other than strictly therapeutic purposes is prohibited by law.

narcotic analgesics
opiate derivatives such as morphine and etorphine.
narcotic antagonists
substances used to reverse the effects of morphine derivatives. They include naloxone, and partial antagonists such as levallorphan and nalorphine.
narcotic antitussives
cough suppressants, usually containing codeine.