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Men with erectile dysfunction (ED) can take Tadarise 20 mg as medicine. Tadalafil, an inhibitor of phosphodiesterase type 5 (PDE5), is its active component. Tadalafil improves erectile function by assisting in the augmentation of blood flow to the penis during sexual stimulation. Tadalafil functions by preventing PDE5, an enzyme, from degrading cyclic guanosine monophosphate (cGMP) in the penis' smooth muscle cells. Elevated concentrations of C-GMP cause smooth muscle relaxation, which enhances blood flow and helps to achieve an erection.