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