Kamagra Gold 100 contains Sildenafil which belongs to a collection of medicines called phosphodiesterase type 5 (PDE5) inhibitors. It is used to treat mature males with erectile dysfunction, also known as incapability. It happens when a male cannot acquire, or retain a hard, erect penis appropriate for sexual action. Erectile dysfunction (ED) is inability of males to attain and sustain an erect penis with sufficient rigidity to permit sexual interaction. This medicine works by helping to relax the blood containers in penis, allowing blood to stream into penis when you acquire sexually excited.