Fildena 120 pills are prescribed to address sexual difficulties. The active substance in these tablets is sildenafil. These medications assist men keep a sexual erection. Before taking Fildena 120 pills, see a doctor. These pills are administered 30 minutes to an hour before sexual intercourse. Fildena 120 pills have an impact that lasts 4-5 hours. Do not take these tablets with a heavy meal.