SILDENAFIL belongs to the group of medicines called phosphodiesterase type-5 (PDE 5) inhibitors primarily used to treat erectile dysfunction (impotence) in adult men. Additionally, SILDENAFIL may also be used to treat pulmonary arterial hypertension (high blood pressure in the lungs) in adults to improve the ability to exercise and to slow down clinical worsening. SILDENAFIL works by relaxing the blood vessels in the penis, thereby allowing the blood to flow into the penis when the person is sexually excited. Thus, SILDENAFIL helps treat erectile dysfunction. SILDENAFIL relaxes the blood vessels, increases the blood supply to the lungs and reduces the workload of the heart. Thereby, treating pulmonary hypertension. Erectile dysfunction (sometimes called impotence) means that you cannot get or maintain a proper erection. There are several causes, the most common being due to a narrowing of the arteries that take blood to the penis. Sildenafil works by preventing the action of a chemical in your body, called phosphodiesterase type-5. This helps to widen (relax) blood vessels and improves the flow of blood to the penis following sexual stimulation. This helps to maintain an erection. GRAB YOUR COPY TODAY BY SCROLLING UP AND CLICKING BUY NOW TO GET YOUR COPY NOW IN ONE CLICK