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About
Stendra 100mg is a strong competitive inhibitor of phosphodiesterase 5 (PDE5) with a demonstrated in vitro IC50 of 5.2 nM. Its inhibitory effects on PDE5 are 100-fold more potent than on PDE6 and >1000-fold more potent than on other PDE enzymes, meaning it is less likely to cause visual disturbances and cardiovascular adverse effects when compared with less selective PDE5 inhibitors such as sildenafil and vardenafil. It has a relatively quick onset of action allowing for administration as early as 15 minutes prior to sexual activity.
