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Esth, 78, 400-406. 7. Aantaa R, et al (1997). Reduction of the MAC of isoflurane by dexmedetomidine. Anesthesiology, 86, 1055-1060. 8. Buerkle H & Yaksh T (1998). Pharmacological evidence for different alpha 2-adrenergic receptor sites mediating analgesia and sedation in the rat. Brit J Anaesth, 81, 208-215. 9. Buerkle H (2000). Peripheral anti-nociceptive action of alpha2-adrenoceptor agonists. Baillires Clin Anaesth, 14, 411-418. 10. Onttonen T, et al (2000). Selective and segmentally restricted antinociception induced by MPV-2426, a novel alpha-2-adrenoceptor agonist, following intrathecal adminsitration in the rat. Acta Anaesthesiol Scand, 44, 1077-1082. 11. Eisenach JC, et al (1996). a2-adrenergic agonists for regional anesthesia: a clinical review of clonidine (1984-1995). Anesthesiology 85, 655-674. 12. Chiari A, et al (1999). Analgesic and hemodynamic effects of intrathecal clonidine as the sole analgesic agent during the first stage of labor a dose response study. Ane
clonidine mechanism of action Uires registration (Free) Article Access Statistics Viewed961 Printed28 Emailed0 Comments Add Click on image for details. RESEARCH PAPER Year : 1980 Volume : 12 Issue : 2 Page : 79-84 Mechanism of action of clonidine on body temperature Saxena PN clonidine mechanism of action, Correspondence Address: Saxena P N . The effect of clonidine hydrochloride has been studied in unanaesthetized albino rats clonidine mechanism of action, cats clonidine mechanism of action, dogs clonidine mechanism of action, guineapigs clonidine mechanism of action, pigeons and albino rabbits. A lateral ventricle was chronically cannulated for making intraventricular injections. Clonidine provoked a fall in body temperature by its central action. The rabbit was the least sensitive. It is suggested that the hypothermic effect is mediated through activation of central (-adrenoceptors and it exhibits clonidine mechanism of action, like noradrenaline clonidine mechanism of action, species dependence and is blocked by phenoxybenzamine in the rat and the cat. Behavioural manifestations of sympathetic stimulation clonidine mechanism of action, emesis clonidine mechanism of action, chewing clonidine mechanism of action, sedation etc. also accompany intraventricular injections of clonidine. The effect of noradrena clonidine mechanism of action.
clonidine mechanism of action Ty-reducing effect of clonidine (1 mg kg at 30 min pretesting) was reversed by yohimbine (4 mg kg) but was unaffected by prazosin (2 mg kg) or alpha-methyl-paratyrosine (100 mg kg) clonidine mechanism of action, and was enhanced by reserpine (2.5 mg kg). Mediation by alpha-2 postjunctional receptors was thus suggested. However clonidine mechanism of action, two 5-HT receptor blockers--methysergide (2 mg kg) and ketanserin (8 mg kg)--increased this effect of clonidine whereas the non selective agonist 5-MeODMT (1 mg kg) reduced clonidine action. Conversely clonidine mechanism of action, pretreatment with a subthreshold dose of clonidine (0.06 mg kg at 45 min pretesting) made effective subthreshold doses of three 5-HT uptake inhibitors (citalopram 2 mg kg clonidine mechanism of action, indalpine and fluvoxamine 4 mg kg) and of the 5-HT1 receptor agonist 8-OH-DPAT (0.5 mg kg). According to these data clonidine mechanism of action, the mouse swimming model would trigger functional relationships between central alpha-noradrenergic and serotonergic mechanisms.PMID: 2721437 PubMed - indexed for MEDLINE Display Summary Brief Abstract Abstra.
clonidine mechanism of action Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Cited by other online articles Google Scholar Articles by Charney clonidine mechanism of action, D. S. Articles by Sternberg clonidine mechanism of action, D. E. Articles citing this Article PubMed PubMed Citation Articles by Charney clonidine mechanism of action, D. S. Articles by Sternberg clonidine mechanism of action, D. E. The British Journal of Psychiatry 142: 265-275 (1983) © 1983 The Royal College of Psychiatrists Alpha-2 adrenergic receptor sensitivity and the mechanism of action of antidepressant therapy. The effect of long-term amitriptyline treatment DS Charney clonidine mechanism of action, GR Heninger and DE Sternberg It has been hypothesized that the mechanism of action of antidepressant treatments is related to their ability to decrease the sensitivity of the alpha-2 adrenergic autoreceptor. In order to assess alpha- adrenergic autoreceptor sensitivity clonidine mechanism of action, the effects of clonidine clonidine mechanism of action, the alpha-2 adrenergic receptor agonist clonidine mechanism of action, on plasma levels of the norepinephrine metabolite 3-methoxy-4-hydroxyphenethyleneglycol (MHPG) clonidine mechanism of action, blood.
clonidine mechanism of action 
clonidine mechanism of action | | | | | |
clonidine mechanism of action
Severe impairment of renal function. Following oral administration about 40-60% of the absorbed dose is recovered in the urine as unchanged drug in 24 hours. About 50% of the absorbed dose is metabolized in the liver. Clonidine stimulates alpha-adrenoreceptors in the brain stem, resulting in reduced sympathetic outflow from the central nervous system and a decrease in peripheral resistance: at a 45° tilt there is a smaller reduction in cardiac output and a decrease of peripheral resistance. During long-term therapy, cardiac output tends to return to control values, while peripheral resistance remains decreased. Slowing of the pulse rate has been observed in most patients given clonidine, but the drug does not alter normal hemodynamic response to exercise. Other studies in patients have provided evidence of a reduction in plasma renin activity and in the excretion of aldosterone and catecholamines, but the exact relationship of these pharmacologic actions to the antihypertensive eff
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