Phenylephrine primarily acts as an alpha 1 adrenergic receptor agonist and shows minimal to no beta adrenergic activity. Phenylephrine hydrochloride is also an over the counter (OTC) agent used in ophthalmic formulations to induce mydriasis and Determination of Gamma Glutamylcysteine Ethyl Ester Efficacy via Enzymatic Analysis in Moderate Traumatic Brain Injury Harnessing the Mechanism of Glutathione Reductase for Synthesis of Active Site Bound Metallic Nanoparticles and Electrical Connection to Electrodes Journal of the American Chemical Society Sigma Aldrich Glutathione, Oxidized, Free Acid, CAS 27025 41 8, Glutathione, Oxidized, Free Acid, CAS 27025 41 8 A substitution in the glutathione reductase lowers electron leakage and inflammation in modern humans Science Advances Sigma Aldrich Fine Chemicals Biosciences L Glutathione oxidized 27025 41 8 MFCD00063106 5g