“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.”