Kamagra 100 having Sildenafil works by inhibiting phosphodiesterase type 5 in the body. Thus it stops the degradation of cGMP( Cyclic guanosine monophosphate). The availability of cGMP helps relax the veins in the penis region and thus helps in erection when there is a need for sexual activity or sexual stimulation.
Inhibition of phosphodiesterase type 5 (PDE-5) in the smooth muscle of pulmonary blood vessels results in its relaxation and helps to reduce the pressure in the lungs.