Fildena Double 200 mg is a medication primarily used to treat erectile dysfunction in men. It contains sildenafil citrate, which belongs to a class of medications called phosphodiesterase type 5 (PDE5) inhibitors. Fildena works by increasing blood flow to the penis during sexual stimulation, thereby helping men achieve and maintain an erection.   As with any medication, it's crucial to follow the prescribed dosage and usage instructions provided by a healthcare professional. It's important to note that Fildena, like other medications, may have potential side effects and interactions with other drugs, so it's essential to use it under medical guidance.