“In agreement with these data on uptake of the inhibitors, l‐lysine and l‐ornithine antagonized the inhibitory effects of NG‐methyl‐l‐arginine on bradykinin‐induced intracellular cyclic GMP accumulation, whereas l‐tryptophan, l‐phenylalanine, and l‐leucine interfered with the effects of NG‐nitro‐l‐arginine.”