Vidalista Black 80 mg contains tadalafil, a potent inhibitor of the phosphodiesterase type 5 enzyme. This enzyme is in charge of regulating blood flow throughout the penis. It improves blood flow to the penile tissues by inhibiting PDE5, which aids in the initiation and maintenance of erections during sexual stimulation. Men who take it orally, often 30 to 60 minutes before sexual activity, can get and maintain firm erections. Headaches, flushing, indigestion, and nasal congestion are common side effects. Avoid grapefruit and grapefruit juice while using Vidalista Black 80 mg due to potential medication interactions.