Fildena Double 200 mg
is a medication that contains sildenafil citrate, the same active ingredient as in Viagra. It's used to treat erectile dysfunction (ED) by increasing blood flow to the penis, helping men achieve and maintain an erection during sexual stimulation. Common side effects include headaches, flushing, indigestion, dizziness, and visual disturbances. More serious side effects like sudden vision loss or an erection lasting more than 4 hours (priapism) require immediate medical attention.