Fildena Professional is a form of sildenafil citrate used to treat erectile dysfunction (ED) in adult men. It is designed as an orally disintegrating tablet (ODT) that dissolves on the tongue without needing water. It works by inhibiting the enzyme phosphodiesterase type 5 (PDE5). This increases levels of cyclic guanosine monophosphate (cGMP), which relaxes smooth muscles in the corpus cavernosum of the penis. During sexual stimulation, this allows increased blood flow, helping achieve and maintain an erection. It does not cause an erection without sexual arousal. https://www.genericday.com/fildena-professional.html