Both do the same, increase the blood-flow to the genital area. Where Viagra is more of an instant effect versus Arginine. Together I'm not sure, Arginine is a healthier choice IMO. I don't advocate the use of PDE5 inhibitors as a sexual performance enhancer.
Maybe using both could cause some adverse effects such as: priapism, hypotension, myocardial infarction, ventricular arrhytHydromaxias, stroke and increased intraocular pressure.
I know using a high dosage of Arginine only causes some diarrhea and minor headaches versus the over dosage of Viagra with adverse effects of chest-pain, edema, migraines, anxiety, vertigo.
Everyone is different and it won't happen to me mentality should keep you safe... the choice is yours.
