Kamagra 100mg tablets inhibits the action of PDE5 which resolves erectile dysfunction by allowing the natural process of s*xual stimulation to activate the cGMP mechanism to achieve and maintain an erection. Kamagra 100mg tablets should be taken within one hour of planned intercourse and in most cases help you achieve an erection in about 30 minutes which will last for about 4 hours, provided you are s*xually aroused. Kamagra 100mg tablets don't work if you are not excited. Kamagra Chewable tablets contain sildenafil, which resolves erectile dysfunction (impotence) in men by increasing blood flow to the p*nis.