Why do I experience side effects with sildenafil?

While sildenafil aims to increase blood flow to the penis by widening the blood vessels, it can affect the blood flow in other parts of your body. As more blood flows to the brain, face, and nose, you can experience headache, flushing, and blocked nose (increase in mucus production). Widening of blood vessels in the body can also lower your blood pressure, which explains the possibility of dizziness with sildenafil.

There are many myths out there, but safe to say, you can’t get addicted to sildenafil nor will you have an unplanned bulge in your pants.