Kamagra Chewable Tablets (packed as 4 tablets) are an easy way to provide oral therapy for the treatment of erectile dysfunction. Plan ahead if you are going to have sex, as the tablet takes 45 minutes to be fully effective, but stays working for 4 to 6 hours. The  active ingredient boosts the blood supply to the male genitals and creates a harder, stronger erection for men struggling with impotence.