Fildena 120mg is an energizer used to treat erectile dysfunction and pulmonary hypertension. This medication, which mostly requires a prescription, is available at major online pharmacies, pharmacies, and prescription medical supply stores. Fildena tablets contain generic sildenafil citrate, a potent PDE-5 inhibitor, an important therapeutic agent for clozapine. It is taken orally 45 minutes before intercourse. The effect of this treatment lasts for three to four hours after drug administration. Impotence is a condition where a man cannot get a sufficient erection during intercourse and is unable to do so.