“The increase in … induced by cocaine (160 μg, i.e.) was attenuated dose‐dependently by prior cavemosal administration of the NO synthase …, Nω‐nitro‐L‐arginine methyl ester (1‐NAME, 0.5, 1 or 5 pmol) or NG‐monomethyl‐L‐arginine (L‐NMMA, 2.5, 5 or 10 pmol).”