What is Vidalista 40? Vidalista 40 is a medication used to treat erectile dysfunction (ED) in men. ED is a condition in which a man has difficulty achieving or maintaining an erection sufficient for satisfactory sexual activity. Vidalista 40 contains tadalafil, which is a type of medication known as a phosphodiesterase type 5 (PDE5) inhibitor. PDE5 inhibitors work by increasing blood flow to...