An EC 1.14.13.* (oxidoreductase acting on paired donors, incorporating 1 atom of oxygen, with NADH or NADPH as one donor) inhibitor that interferes with the action of nitric oxide synthase (EC 1.14.13.39).
A product in capsule, tablet or liquid form that provide essential nutrients, such as a vitamin, an essential mineral, a protein, an herb, or similar nutritional substance.