PROBLEM TO BE SOLVED: To find excellent agent for accelerating synthesis of hemoendothelial nitrogen oxide and/or for maintaining and/or increasing the concentration of hemoendothelial nitrogen oxide in blood.SOLUTION: This agent for promoting the synthesis of hemoendothelial nitrogen oxide and/or for maintaining and/or increasing the concentration of hemoendothelial nitrogen oxide contains one or two or more kinds of components selected from soysterol, pyridoxines, riboflavins, tocopherols, taurine, inositol hexanicotinate and pantethine.COPYRIGHT: (C)2004,JPO【課題】優れた血管内皮性酸化窒素の合成促進及び/又は血管内皮性酸化窒素血中濃度の維持・向上剤を見出すこと。【解決手段】ソイステロール、ピリドキシン類、リボフラビン類、トコフェロール類、タウリン、イノシトールヘキサニコチネート及びパンテチンから群から選ばれる1種又は2種以上を含有する血管内皮性酸化窒素の合成促進及び/又は血管内皮性酸化窒素血中濃度の維持・向上剤。【選択図】なし