Just like Viagra, Nizagara has sildenafil citrate as the main ingredient.
It blocks PDE5 enzyme, which results in a rise of blood flow to the penis when sexually aroused. This is the method which allows a person to get and keep an erection proper for sexual intercourse.
It boosts the blood circulation in the penis which is the main factor for getting and holding an erection when sexually stimulated. Nizagara works by blocking the phosphodiesterase type 5 (PDE5) enzyme, which leads to an increase in cyclic guanosine monophosphate (cGMP). This molecule relaxes smooth muscles and enhances blood flow to the penis, a requirement for an erection.