S-Nitroso-N-acetyl-DL-penicillamine acts as a stable inhibitor of platelet aggregation, is a nitric oxide donor and . S-Nitroso-N-acetyl-DL-penicillamine (10 mM; 8 hours) after 6 hours under normoxic conditions by releasing nitric oxide (NO)induces toxicity of about 80% .

Hulupinic acid is the main oxidation product of hop acid, which may inhibit the production of NO in macrophages RAW 264.7 cells.

AR-C102222 is a potent, selective iNOS inhibitor with IC50 of 35 nM, dislapys 3,000-fold and 20-fold selectivity over eNOS and nNOS respectively; reduces inflammation produced by the application of arachidonic acid to the ear, attenuates FCA-induced mechanical hyperalgesia, and attenuates acetic acid-induced writhing in mice.Rheumatoid ArthritisDiscontinued