Vilitra 60, containing the active ingredient vardenafil, belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. By inhibiting the action of PDE5, Vilitra 60 promotes increased blood flow to the penis, aiding in achieving and sustaining an erection. Additionally, it helps in reducing high blood pressure in the pulmonary arteries, relieving symptoms of PAH.