Caverta 50 mg tablet belongs to a group of medicines called phosphodiesterase type 5 inhibitors (PDE-5 inhibitors) and is mainly used to treat erectile dysfunction (impotence) in adult men. In addition, Caverta 50 tablet can also be used to treat the pulmonary artery. Hypertension (high blood pressure in the lungs) in adults to improve exercise capacity and delay clinical deterioration. Caverta 50 tablet works by relaxing the blood vessels in the penis, which allows blood to flow into the penis when the person is sexually aroused. Therefore, Caverta 50 mg tablet helps in the treatment of erectile dysfunction. Caverta 50 tablet relaxes the blood vessels, increases the blood supply to the lungs and relieves the heart.