Vidalista Black 80 contains tadalafil, a phosphodiesterase type 5 (PDE5) inhibitor. Tadalafil works by increasing the levels of cyclic guanosine monophosphate (cGMP), leading to vasodilation and improved blood flow. While primarily used to treat erectile dysfunction, tadalafil's effects extend beyond the penile vasculature, influencing blood vessels throughout the body.
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