Filagra is a medication that contains sildenafil citrate as its active ingredient. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor, and it is commonly used to treat erectile dysfunction (ED) in men. Filagra, like other sildenafil-containing medications, works by increasing blood flow to the penis during sexual stimulation, which helps men achieve and sustain an erection. https://www.flatmeds.com/product/filagra-oral-jelly/