Kamagra Effervescent is a medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient sildenafil citrate, which is also found in the popular medication Viagra. Sildenafil citrate belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors.Kamagra Effervescent comes in the form of effervescent tablets that dissolve in water. When consumed, the tablet quickly dissolves, releasing the medication in a fizzy liquid form. This makes it easier to take for individuals who have difficulty swallowing traditional tablets.