Fildena 150 mg inhibits PDE-5, which regulates blood flow through the penis. By blocking PDE-5, this cyclic guanosine monophosphate (cGMP) increases the relaxation level for smooth muscles in that region of the penis. When the blood flow is relaxed, the erection is retained and maintained. Fildena 150 mg works by promoting increased blood flow to the penis, resulting in stronger and longer-lasting erections. This prescription drug empowers men to regain confidence in their relationships.