Kamagra Online is a commonly prescribed medication for individuals suffering from erectile dysfunction and benign prostatic hyperplasia. It belongs to the class of medicines known as phosphodiesterase type 5 (PDE5) inhibitors. Sildenafil works by relaxing the blood vessel muscles, boosting blood flow to the penis, and assisting in the formation and maintenance of an erection. This medication's effects last 4 to 6 hours. This medication can be used before or after meals. Take this medication as directed by your doctor.