Vidalista 20 mg contains 20 milligrams of tadalafil per tablet. It is one of the standard dosages available for tadalafil, with others including 5 mg, 10 mg, 40 mg, 60 mg, and 80 mg. Tadalafil, the active ingredient in Vidalista 20 mg, works by inhibiting the enzyme phosphodiesterase type 5 (PDE5), which is responsible for the degradation of cyclic guanosine monophosphate (cGMP) in the corpus cavernosum of the penis. By inhibiting PDE5, tadalafil allows cGMP levels to increase, promoting smooth muscle relaxation and vasodilation, which enhances blood flow to the penis and facilitates an erection when sexually stimulated.

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