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PubMed1976

Crystal structures of synthetic analgetics. V. Dextromoramide.

The molecular and crystal structure of dextromoramide has been determined by X-ray methods. The crystals are orthorhombic, space group P212121 with unit cell dimensions a = 9.720(4) A; b = 12.226(3) A; c = 18.381(3) A. The structure was determined by direct methods and the model refined to an R-value of 0.036 for 1788 observed reflections. The mean e.s.d.'s in bond lengths and angles are 0.004 A and 0.3, respectively. The morpholine moiety is nearly in antiposition relative to the quaternary carbon atom C6, the pertinent angle C6 - C7 - C9 - N2 being - 159.4. This conformation is similar to that previously reported for the bitartrate of the title compound. The pyrrolidine ring has the envelope conformation and the amide group is strictly planar. The conformation of some acyclic analgetics are discussed.

Dextromoramide↗

PubMed1976

[Neuroplegia and extracorporeal circulation. Comparison between combinations of droperidol-phenoperidine and chlorprothixene-dextromoramide in cardiac surgery].

After a quick review of the physiopathology of extra-corporeal circulation, the value of the use of neuroplegic drugs in cardiac surgery is recalled by means of pharmacological arguments. The experimental differences existing between the combinations droperidol - phenoperidine and chlorportixene - dextromoramide, on the rate of flow and on the pressure of the perfusion, and on the esophago-rectal thermic gradients during E.C.C. is then demonstrated. Statistic calculation confirmed the superiority of chlorprotixene in the realm of tissue perfusion during E.C.C. under hypothermia.

Adult↗

PubMed1989

Identification and determination of dextromoramide, a nonopiate narcotic.

A method for the identification and quantification of dextromoramide in plasma by GC/NPD is presented. The procedure employs alfentanil as the internal standard and requires no derivatization. After a single-step extraction, analysis is performed on a 3% OV-17 Chromosorb Q glass column. The lower limit of detectability was found to be 2 ng/ml in plasma.

Chromatography, Gas↗

PubMed1975

[Comparison of the endocrine response under 2 kinds of anesthesia: neuroleptanalgesia of the chlorprothixene-dextromoramide type and venous anesthesia of the type alfadione-fentanyl].

In 14 patients anaesthetized before undergoing an orthopedic surgical intervention, the variations induced by anaesthesia in the 17 hydroxycorticosterone rate, catecholamine, somatotropic hormone (STH), insulin, glycemia, free fatty acids and thyrotropin (TSH), all these variations were studied before the surgery. The patients were divided into 2 groups of 7, the first one being anaesthestized by chlorprothixene dextromoramide Neurolept-Analgesia and the second one by Alfadione Fentanyl venous anaesthesia.

Alfaxalone Alfadolone Mixture↗

PubMedDate not supplied

Influence of the restoration of vagal tone by intracisternal injection of dextromoramide on the cardiac effects of the antiarrhythmic drugs.

The effects of four antiarrhythmic drugs, quinidine, procainamide, amiodarone and verapamil were studied on sinus rate, conduction time and, when possible, effective refractory period (ERP) in atrioventricular node (AV node), and finally atrial muscle ERP. This study was made under two types of conditions, vagal tone being absent or present after restoration in the anesthetized dog by a new technique, the intracisternal injection of dextromoramide. Quinidine and procainamide which tend to slow down sinus rate and conduction in the former case accelerate them considerably in the latter by opposing the effects of acetylcholine released by vagal endings. The prolongation of atrial ERP also induced by these drugs results from both this process and their own capacity. Amiodarone and verapamil, usually responsible for bradycardia, notable delay in AV node conduction and lengthening of AV node ERP are, however, liable to elicit opposite effects, especially amiodarone when vagal tone is very high. The reduction of vagal influence is, in the case of these drugs, the only factor in the prolongation of atrial ERP. In any case, the response of both specialized and common tissue of the heart to antiarrhythmic drugs should not be interpreted unless the degree of vagal tone is known.

Amiodarone↗

PubMed1964