Purpose To evaluate the effects of clonidine on responses to adrenoceptor agonists and
baroreflex sensitivity, we examined arterial blood pressure (AP) responses to phenylephrine …

Clonidine, an alpha 2-adrenergic agonist, has been shown to modify the hemodynamic
responses to surgery. To examine further the mechanism underlying this action, we …

Study Objectives: To investigate whether a single preoperative IV dose of clonidine blunts
the hemodynamic and hyperadrenergic responses not only to intubation, but also to …

Clonidine, an α 2-adrenergic agonist, augments the pressor response to intravenous
ephedrine. If this effect is partly due to clondine-induced potentiation of α 1-adrenoceptor …

Background Clonidine premedication modifies the hemodynamic responses to
sympathomimetics. The present study was designed to test whether clonidine altered the …

Clonidine diminishes sympathetic nervous system activity via a central action. To test if the
haemodynamic responses to ketamine, a centrally acting sympathomimetic drug, are …

Clonidine decreases the stress-induced sympathoadrenal responses to painful stimuli and
improves hemodynamic stability during general anesthesia. Because acute hypertensive …

The effects of clonidine, a central alpha2‐adrenoreceptor agonist, on haemodynamic and
catecholamine changes were assessed during emergence from anaesthesia, a period …

It has been suggested that postjunctional alpha 1-adrenoceptor mediated vasoconstriction is
enhanced by clonidine. We have examined in humans if the pressor responses to …

Supplementation of the antihypertensive action of the peripheral vasodilator sodium
nitroprusside (SNP) with clonidine, a centrally-acting agent, was studied in ten dogs …