Men with erectile dysfunction (ED) are prescribed fildena double 200mg, a high-dose medication. Each pill contains sildenafil, a potent dosage designed to improve blood flow to the penis during sexual stimulation. The phosphodiesterase type 5 (PDE5) enzyme is blocked by the medication, which relaxes blood vessels and increases blood flow. Thirty to sixty minutes before having sex, take Fildena Double. Usually, it lasts for four to six hours. The frequency and dose recommendations, which are often restricted to one tablet per day, must be strictly adhered to.