Sildalist Strong 140 mg offers the benefits of both Sildenafil Citrate and Tadalafil, two well-known PDE5 inhibitors that increase blood flow to the penis, helping men achieve and sustain erections. Sildenafil works by blocking the enzyme PDE5, which regulates blood flow in the penis, while Tadalafil extends the effect of the treatment by increasing the duration of action, allowing men to perform for a longer period.