PDE 5 inhibitors, which include sildenafil citrate tablets cenforce 200 , are a class of medications. Sildenafil, which is present in it, inhibits the PDE-5 enzyme's activity and permits healthy blood flow to the penis.

The dilatation and contraction of blood vessels are caused by cGMP. Blood flow is restricted by PDE 5, which also degrades cGMP. The sildenafil in Cenforce 200 inhibits the breakdown of cGMP and, through blocking PDE-5 activity, raises the levels of nitric oxide. Blood travels freely to the penis once adequate cGMP production has occurred. A pressure is produced when more blood travels towards the penis. Erection is the outcome of this.