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Malegra 50 contains sildenafil citrate as its active ingredient, which is a phosphodiesterase type 5 (PDE5) inhibitor. Here's how Malegra 50 improves blood flow to the penis:

PDE5 Inhibition: Sildenafil citrate in Malegra 50 works by inhibiting the action of phosphodiesterase type 5 (PDE5) enzyme. PDE5 is responsible for the degradation of cyclic guanosine monophosphate (cGMP) in the smooth muscle cells of the penis.

Increased cGMP Levels: By inhibiting PDE5, Malegra 50mg helps increase the levels of cGMP in the smooth muscle cells. This leads to relaxation of the smooth muscles and dilation of the blood vessels in the penis.

Improved Blood Flow: The relaxation and dilation of blood vessels in the penis allow for increased blood flow during sexual stimulation. This enhanced blood flow results in the engorgement of the erectile tissues, leading to a firm and sustained erection.

Erectile Response: Malegra 50 facilitates the natural erectile response to sexual stimulation by promoting the physiological processes that lead to penile erection.