Any info on this drug would be highly appreciated. Thank you in advance. In addition, I do not believe that the clinical efficacy has been studied, especially not with respect to the current scientific standards - this is a fairly old drug. Even if efficacy was acheived, I don't think that it is unproven whether expectoration has an impact on outcome.
Water is probably a better expectorant in clinical terms.
I am interest in this as well. I think the more common explanation is aspiration pneumonitis caused by an incompetent esophageal sphincter. It is a centrally-acting skeletal muscle relaxant that selectively depresses or blocks nerve impulse transmission at the internuncial neuron level of the spinal cord, brainstem, and subcortical areas of the brain. It does not, however, depress intercostal or diaphragmatic activity, as other peripheral-acting skeletal muscle relaxants. If used alone, the IV dose is .at.