Vidalista 40 contains Tadalafil, a phosphodiesterase type 5 (PDE-5) inhibitor that helps improve blood flow to the penis. This assists in achieving and sustaining an erection during sexual stimulation, addressing the difficulties associated with ED. By facilitating improved blood circulation to the penis, Vidalista 40 aids in achieving a firmer and longer-lasting erection, leading to enhanced sexual performance.