“…,tetraethylammonium (10–100 μm), a potassium‐selective ion channel blocker and Nω‐nitro‐l‐arginine (l‐NOARG; 10–500 μm), a specific inhibitor of nitric … (10–500 μm), a phospholipase C inhibitor and indomethacine (1–10 μm), a non‐selective COX inhibitor, significantly inhibited the relaxations induced by ethanol.”