L-arginine is an amino acid that may help promote blood flow, athletic performance, and wound healing, among other benefits. But taking L-arginine supplements may interact with certain medications.

When L-arginine is converted into nitric oxide, it can help promote blood flow, bring more oxygen throughout the body, and smooth muscle relaxation. All of these factors are essential for erections.

In neonatal mammals, arginine is synthesized in the enterocyte, with either proline or glutamate as the dietary precursor. We have shown several times in piglets that proline is the only precursor ...

Polaris Pharmaceuticals is evaluating its lead therapeutic protein—pegargiminase, a novel targeted cancer therapy that depletes circulating arginine—in combination with standard chemotherapies ...