Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0344307 (analgesia)
 28,200 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Scopolamine was found to block both brief shock-induced (3 0.75-s, 1.0-mA shocks) and conditioned hypoalgesia on the tail-flick test in rats. The drug also produced a general increase in pain reactivity as measured by both the tail-flick test and shock-induced vocalization. It was shown that this hyperalgesia cannot account for the effect of the drug on brief-shock or conditioned hypoalgesia. Scopolamine did not block the nonopioid analgesia observed after long shock (3 25-s, 1.0-mA shocks). When the effect of the drug on baseline levels of pain reactivity was controlled, it potentiated long shock-induced hypoalgesia. Scopolamine also increased reactivity to tactile stimulation, which suggests the hyperalgesia reflects a general increase in arousal. None of these effects were observed with methylscopolamine, which suggests they are not peripherally mediated.
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PMID:Role of cholinergic systems in pain modulation: I. Impact of scopolamine on environmentally induced hypoalgesia and pain reactivity. 202 95

We report on a patient with acute pancreatitis whose pain was resistant to simultaneous administration of morphine, procaine and Buscopan. This episode was complicated by development of hypertension, tachycardia, angina pectoris, ventricular arrhythmias and electrocardiographic modifications. Analgesia was provided by epidural administration of fentanyl and bupivacaine and brought about rapid resolution of all symptoms. The usefulness of epidural analgesia in acute pancreatitis is discussed.
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PMID:[The value of epidural analgesia in acute pancreatitis]. 230 24

In order to examine the function of an endogenous system of pain inhibition during aging, rats (3, 14, and 24 months old) were exposed to 90 s of hind-paw shock. To investigate the pharmacology and anatomy involved in the production of hind-paw shock induced analgesia, the effects of naltrexone (7 mg/kg), scopolamine (5 mg/kg), and adrenalectomy were examined. Results revealed that there was an age-related reduction in the degree of analgesia produced by hind-paw shock. Naltrexone and adrenalectomy did not alter the analgesia elicited by hind-paw shock. Scopolamine reduced the analgesia produced by hind-paw shock, and the effectiveness of scopolamine blockage declined with age. The results of a second experiment demonstrated that the effect of scopolamine was specific to the analgesia induced by hind-paw shock because scopolamine was ineffective in modifying the analgesia produced by a different stressor (cold water). These results suggest that the decline in hind-paw shock induced analgesia is the result of an alteration in the function of the cholinergic system.
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PMID:Environmentally induced analgesia: age-related decline in a neurally mediated, nonopioid system. 326 98

Sixty-two fetal heart rate/uterine contraction recordings were examined prior to and following the administration of analgesia. Two groups, identified according to the receipt or absence of scopolamine, were evaluated concerning modification of baseline variability, beat-to-beat variability and fetal heart rate deceleration patterns. Scopolamine was found to be capable of eliciting fetal tachycardia, decreased beat-to-beat and baseline variability and decreased fetal heart rate decelerations. The mean one-minute Apgar scores for the two groups did not differ from each other nor from that of a control group that had not received any analgesia during labor.
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PMID:The effects of scopolamine and ancillary analgesics upon the fetal heart rate recording. 720 1

This article reviews the main results in recent years of studies on the role of central Ach in pain modulation and analgesia, including: (1) cholinergically induced analgesia (CIA). Cholinomimetic drugs raised the pain threshold or inhibited the unit discharges of hypothalamus parafascicularis nuclens in rats, and these actions were revised by atropine not by nicotine. (2) Ach and acupuncture analgesia (AA). The effect of electroacupuncture was changed by administration of HC-3, atropine, etc. (3) Ach and stress analgesia (SA). Scopolamine reduced the hind foot shock induced analgesia, and this kind of SA was probably mediated by m-receptors existed at supraspinal, rather than spinal level. Swimming and immobilization analgesia were also related to Ach. These data suggested that the central cholinergic system is very important in pain modulation and analgesia and the central Ach is essential transmitter or modulator in this analgesic pathway. But the problem is whether the mechanism of CIA is involved in opiate analgesic system or not.
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PMID:[The role of Ach in the central nerve system on pain modulation and analgesia]. 808 73

Premedication of patients requiring cardiac surgery should provide adequate analgesia, sedation and anxiolysis for the stress and pain associated with preoperative preparation and placement of monitoring catheters. Ideally, these effects would be achieved without producing respiratory depression and hypoxia, which could be life-threatening to patients at risk for myocardial ischemia. Ketorolac, a nonsteroidal, antiinflammatory agent, has previously been shown to provide postoperative pain relief comparable to that provided by morphine, without respiratory depression. This study compared the incidence of arterial blood desaturation, respiratory depression, and patient comfort after preoperative medication with scopolamine and ketorolac versus scopolamine and morphine. Scopolamine and ketorolac premedication provided sedation and analgesia comparable to that provided by scopolamine and morphine, without significant respiratory depression. Since ketorolac has no central respiratory depressant effect, it may be a useful alternative to morphine for premedication in the cardiac surgical patient.
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PMID:Ketorolac as a premedicant for coronary artery bypass surgery patients with normal ventricles. 813 95

Relief of pain and safety of mother and child are fundamentals in obstetrical analgesia. Elimination of those drugs which are ineffective or dangerous is the best guide to proper medication. Morphine, codeine, or similar opium derivatives should be avoided as they depress fetal respiration. Barbiturates have the same fault, despite their popularity. Demerol in small dosage is safe and effective. Scopolamine yields excellent results with safety. Magnesium sulfate potentiates and reinforces the action of scopolamine and involves no danger. This combination of drugs may be used by any competent general practitioner in the home or hospital.
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PMID:An evaluation of obstetrical analgesia. 1312 11

The German firm E. Merck released in 1928, an injectable mixture of scopolamine, oxycodone, and ephedrine under the name SEE. This drug, renamed Scophedal in 1942 caused deep and prolonged analgesia, sedation, euphoria and amnesia without significant respiratory or circulatory depression. Used extensively by the German and Central European surgeons in the 1930s, Scophedal enjoyed immense popularity with the Wehrmacht's medical officers treating frontline mass casualties during World War II. The use of Scophedal declined after 1945, and its production was discontinued in 1987. Despite the clinical enthusiasm it raised, SEE was never critically investigated. This drug may deserve a rigorous re-evaluation.
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PMID:Scophedal (SEE) was it a fad or a miracle drug? 1749 37

The role of muscarinic receptor subtype-1 (M1) in chronic pain is unclear. In an attempt to gain an understanding of its role, we have tested xanomeline, an M1/M4-preferring agonist, together with nonselective (scopolamine and pirenzepine), and selective (MT-7 and MT-3) muscarinic receptor (M1 and M4, respectively) antagonists in a number of inflammatory and neuropathic pain models. Xanomeline potently and effectively reversed tactile allodynia and heat hyperalgesia associated with established neuropathic and inflammatory pain in both rat and mouse models. Scopolamine and pirenzepine completely blocked the analgesic response to xanomeline, confirming that the analgesic effect is mediated by the muscarinic system. The highly selective M1 receptor toxin, MT-7, almost completely abolished the analgesic response to xanomeline when administered supraspinally. However, the highly selective M4 receptor toxin, MT-3, only marginally reversed the analgesia when given supraspinally, and had no effect when given spinally. In conclusion, the data presented show that the nonselective muscarinic agonist xanomeline is analgesic in models of persistent pain and suggest that the activation of supraspinal M1 receptors, and to a lesser extent supraspinal M4 receptors, contributes to that analgesia.
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PMID:The M1/M4 preferring agonist xanomeline is analgesic in rodent models of chronic inflammatory and neuropathic pain via central site of action. 2201 72