What is the common adverse reaction associated with Sildenafil?

Sildenafil, commonly known as Viagra, is primarily used for the treatment of erectile dysfunction and pulmonary arterial hypertension. One of the most common adverse reactions associated with Sildenafil is flushing. This occurs because the drug causes vasodilation, or widening of blood vessels, which can lead to increased blood flow to the skin, particularly in the face, neck, and chest. Flushing is generally harmless but can be uncomfortable for some individuals.

Other potential side effects of Sildenafil include headaches, dyspepsia, and nasal congestion; however, flushing is particularly notable and widely reported. This effect is usually temporary and may diminish as the body adjusts to the medication. Understanding the common adverse reactions of drugs like Sildenafil is essential for managing and anticipating potential patient responses during treatment.