Barbiturates and fractures.

Barbiturates.

Comparative depression of several short acting barbiturates and spiro-barbiturates.

In an effort to develop new and possibly better types of barbiturates, suitable for intravenous use, a large number of spiro-barbiturates have been prepared by a ring closure on the 5-carbon atom of the barbituric acid and afforded for pharmacologic study. Spiro(2'-ethyl-3',5'-dimethyl cyclopentane) thio-barbituric acid appears to be the most promising product of a series of 50 analogues. Stoel...

Barbiturates and oxidative phosphorylation.

It has been claimed that barbiturates uncouple oxidative phosphorylations (Brody & Bain, 1954; Brody, 1955). These authors have demonstrated that during the oxidation of pyruvate by liver and brain mitochondria, phosphate uptake was lowered proportionately more than oxygen uptake. Support for the uncoupling theory was derived from certain similarities between the barbiturates and 2:4dinitrophen...

Mechanism of action of barbiturates.

Despite the widespread use of barbiturates and their clear potential for abuse, little is known of their neurochemical mechanisms of action. Our purpose is to review the neurochemical effects of acute and chronic barbiturate administration, with particular emphasis on the relationship between neurochemical changes and the development of tolerance and dependence. The electrophysiological effects...

A.7 Barbiturates

The term 'barbiturate' refers to drugs which are derivatives of barbituric acid (malonylurea). Barbituric acid itself has no significant psychotropic properties, but its derivatives may have a variety of effects on the central nervous system. Certain of those compounds with significant depressant or sedative-hypnotic properties are of primary importance in medical and nonmedical use. Many of th...