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narcotic |
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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 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. Mentioned in: Analgesics, Opioid, Methadone 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 psychologic 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, n substance that relieves pain, induces sleep, and calms the body. Harmful and highly addictive if used repeatedly or in high doses. 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. 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
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It is completely synthetic and not derived from any animal products. This product is made with a completely synthetic bioresorbable material. The completely synthetic filter element technology and the filter media can be used for all engine applications and designs of filter elements and can also be used retro-compatibly for existing applications. |
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