Tadasoft 40 Mg is typically taken as needed, about 30 minutes before sexual activity. The effects can last up to 36 hours, providing a window of opportunity for sexual activity. Tadalafil works by inhibiting the enzyme phosphodiesterase type 5 (PDE5). This inhibition leads to the relaxation of smooth muscle in blood vessels, particularly those supplying the penis, enhancing blood flow and facilitating the achievement and maintenance of an erection during sexual stimulation. https://www.flatmeds.com/product/tadasoft-40-mg/