Fildena 150 mg is a medication primarily composed of sildenafil citrate, a potent inhibitor of the enzyme phosphodiesterase type 5 (PDE5). This mechanism of action facilitates the dilation of blood vessels in the corpus cavernous of the penis, leading to improved blood flow and consequently, enhanced erectile function. It is essential for healthcare professionals and consumers alike to grasp the pharmacological intricacies of Fildena 150 mg to ensure its safe and effective use. The legal status of Fildena 150 mg is primarily governed by regulatory bodies such as the Food and Drug Administration (FDA) in the United States and similar agencies worldwide.