That drug is a safety drug for people. Kamagra 100 It is also called sildenafil. It helps in maintaining good erection in men. That drug works in the weaker part of most people. This medicine comes in pill form. Take medicine on that ground. Take it 30 minutes before you engage in sexual intercourse. So that helps more. It helps in maintaining erection in the body. It is given according to age in the drug market. It relaxes the muscles. It increases blood volume. Helps increase blood flow to the penis.