N'-Nitro-D-arginine, a nitric oxide synthesis inhibitor, also is a vasodilator that relaxes the smooth muscles and increases blood flow to the penis, improving erections. N'-Nitro-D-arginine also inhibits neutrophil migration by blocking receptors for tumour necrosis factor alpha (TNFα) and interleukin 8 (IL8).

• CAS:66036-77-9
• Formula:C6H13N5O4
• Manufacturer:MedChemExpress
• Molecular mass:219.2