Vidalista Black 80 mg is marketed as a high-strength tadalafil product for erectile dysfunction (ED). Tadalafil is primarily metabolized in the liver, so liver function can affect how the medicine is processed and how much tadalafil remains in the bloodstream. Tadalafil is also metabolized through the CYP3A4 enzyme in the liver, so medicines that strongly inhibit this enzyme can increase tadalafil exposure and may require substantial dose limitations.