How Arginine interacts with sildenafil

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Studies report that arginine may temporarily increase the diameter of blood vessels, which is an expected side effect of this medication. This may alter the effects of this medication and possibly the dose needed for treatment. Use with caution. (1)


  1. View Abstract: Tentolouris C, Tousoulis D, Goumas G, et al. L-Arginine in Coronary Atherosclerosis. Int J Cardiol. Sep2000;75(2-3):123-8.