Viagra, containing sildenafil citrate as its active ingredient, is the FDA-approved PDE5 inhibitor for erectile dysfunction, delivering life-changing results for treating erectile dysfunction (ED), but can cause uncomfortable side effects. This guide https://moreforce.com/how-to-reduce-viagra-side-effects/ explains how to reduce side effects of Viagra. It begins by explaining how the med works and why Viagra side effects occur. When sexually stimulated, the body produces cGMP to relax penile arteries, but PDE5 breaks it down too quickly in ED patients. Viagra inhibits PDE5, prolonging cGMP’s effects for sustained erections (though sexual arousal remains essential).