Kamagra is a brand name for a medication that contains the active ingredient sildenafil citrate. Sildenafil citrate is a phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in men. Sildenafil citrate works by increasing blood flow to the penis during sexual stimulation, helping men achieve and maintain an erection. It does this by inhibiting the enzyme PDE5, which regulates blood flow in the penis. By blocking PDE5, sildenafil citrate allows the blood vessels in the penis to relax and widen, promoting the influx of blood necessary for an erection. https://www.flatmeds.com/product/kamagra-100-mg/