Malegra Oral Jelly 100, which contains Sildenafil Citrate, works by inhibiting the phosphodiesterase type 5 in the body. It thus stops the degradation of cGMP (Cyclic Guanosine Monophosphate). Availability of cGMP helps relax the veins in the penile region and thus aids erect*on when there is a need for sexual activity or sexual stimulation. Inhibition of phosphodiesterase type 5 (PDE-5) in smooth muscle of pulmonary blood vessels results in relaxation of the blood vessels and helps reduce the pressure in your lungs, improving sexual performance, confidence, stamina, satisfaction, reliability, and endurance.