Extra Super Zhewitra combines two active ingredients: Vardenafil and Dapoxetine. Vardenafil, a phosphodiesterase type 5 (PDE5) inhibitor, enhances blood flow to the penis by relaxing the blood vessels. When sexual arousal occurs, Vardenafil facilitates the physiological response necessary for an erection. This mechanism is similar to that of other PDE5 inhibitors, such as Sildenafil and Tadalafil, but Vardenafil has distinct advantages, particularly for men with certain chronic conditions.