Agente terapéutico y dispositivo terapéutico para aliviar el daño por isquemia-reperfusión

Composición farmacéutica gaseosa para inhalación destinada a la utilización en el alivio del daño por isquemiareperfusión que consiste esencialmente en 21% a 98% de oxígeno, 0,1% a 4% de hidrógeno, 40 a 80 ppm de monóxido de nitrógeno, y un remanente de un gas inerte. Treatment for alleviating ischemia-reperfusion injury which has minimized risk of side effects and which can suppress neutrophilic infiltration and activation of platelets during ischemia reperfusion comprises administration by inhalation of a mixed gas comprising 21% - 98% oxygen, 0.1% - 4% hydrogen, 40 - 80 ppm nitrogen monoxide, and a remainder of inert gas such as nitrogen or helium to a patient undergoing reperfusion from immediately before the start of ischemia reperfusion until shortly after the start of reperfusion.