A powerful drug named Fildena Double 200 is meant to be used to treat male erectile dysfunction (ED). The primary ingredient, sildenafil citrate, is a well-known medication that has been shown to improve blood flow to the penile area. You should take this medication an hour before you want to engage in sexual activity. It usually takes 40 to 60 minutes to work, depending on the man's body. Additionally, place it far away from women and children. It needs to be consumed with food or water. The recommended dosage is one dose per day.