Enflurane sedation and anaesthesia in healthy fit subjects reduced ventilation and the response to carbon dioxide, hypoxaemia and a low dose of doxapram, all in a dose-related fashion. Comparing the three chemoreflexes tested, the response to hypoxaemia and doxapram were the more profoundly impaired; they were nearly totally abolished by anaesthesia. These effects of enflurane on chemoreflex ac...

BACKGROUND Dysregulated respiratory control may play a role in the pathophysiology of panic disorder. This could be due to abnormalities in brain stem respiratory nuclei or to dysregulation at higher brain levels. Results from previous studies using the doxapram model of panic have yielded an unclear picture. A brief cognitive manipulation reduced doxapram-induced hyperventilation in patients, ...

The effects of almitrine bimesylate and doxapram HCl on isometric force produced by in vitro rat diaphragm were studied during direct muscle activation at 37 degrees C. Doxapram and almitrine ameliorate respiratory failure clinically by indirectly increasing phrenic nerve activity. This study was carried out to investigate possible direct actions of these agents on the diaphragm before and afte...

Doxapram is a respiratory stimulant thought to act by stimulating medullary neurones and carotid oxygen receptors (Kato and Buckley 1964). It changes neither oxygen uptake nor CO2 production, but produces substantial hyperventilation (Calvedey et al 1983). Hyperventilation occurs during naturally occurring or pharmacologically induced panic attacks, and perhaps also in panic patients between at...

A number of drugs have been used to treat asphyxia in new-born calves and the aim of the current study was to investigate the effect of commonly-used stimulant drugs on ventilation, arterial blood gas and acid base variables. A group (n=18) of new-born (3-15 h old) calves were treated in a randomised sequence with doxapram (40 mg, IV), lobeline (5mg, IV) or prethcamide (5 mL, consisting of 375 ...

<b><i>Background:</i></b> Apnea of prematurity can persist despite caffeine therapy in preterm infants. Doxapram may additionally support breathing. Although multiple small studies have reported the efficacy doxapram, structural co-treatment with impedes to ascribe doxapram itself or a pharmacokinetic (PK) interaction where increases exposure caffeine. We examined whethe...

Compounds PKTHPP (1-{1-[6-(biphenyl-4-ylcarbonyl)-5,6,7,8-tetrahydropyrido[4,3-d]-pyrimidin-4-yl]piperidin-4-yl}propan-1-one), A1899 (2''-[(4-methoxybenzoylamino)methyl]biphenyl-2-carboxylic acid 2,4-difluorobenzylamide), and doxapram inhibit TASK-1 (KCNK3) and TASK-3 (KCNK9) tandem pore (K2P) potassium channel function and stimulate breathing. To better understand the molecular mechanism(s) of...

BACKGROUND Postanaesthetic shivering is one of the most common unpleasant complications in patients. OBJECTIVES The aim of this study was to compare the efficacy of doxapram, ketamine and meperidine in prevention of shivering after anaesthesia. PATIENTS AND METHODS In this randomized, double-blind clinical trial, 120 patients aged between 20 - 45 years old under general anaesthesia were enr...