Xyrio Tadalafil 5mg is a medication commonly prescribed to treat erectile dysfunction (ED) in men. It contains tadalafil, which is a type of phosphodiesterase type 5 (PDE5) inhibitor. Tadalafil works by increasing blood flow to the penis, helping men achieve and maintain an erection when sexually aroused. Tadalafil blocks the PDE5 enzyme, helping to relax the blood vessels in the penis, which allows more blood flow and improves the ability to achieve an erection.