<p>Almitrine Bismesylate &amp; Raubasine combines raubasine, a vasodilator; and almitrine, a respiratory stimulant. Raubasine has a adrenolytic activity which is predominantly related to a post-synaptic blocking effect. Furthermore, under conditions of cerebral hypoxia, almitrine causes an increase in the partial pressure of oxygen in arterial blood (Pa02); almitrine causes an increase in the Pa02&nbsp;and an increase in the oxygen saturation in arterial blood (Sa02), without modifying ventilatory parameters.</p>