What are the common side effects of sildenafil?

The common side effects of sildenafil include headache, dizziness, facial flushing, blocked nose, nausea, and stomach upset. These effects are generally transient and mild to moderate in nature. Importantly, in view of the different genetic makeup of individuals, not everyone taking sildenafil would experience all the side effects. They are made known to you so you can make a better-informed decision. You can’t get addicted to sildenafil nor will you have an unplanned erection.