Erectile dysfunction refers to a condition where men have trouble getting an erection after having sensual intercourse.Kamagra gold 100mg is one of the drugs enabled to cure the condition.The active ingredient in Kamagra is known as sildenafil citrate and belongs to the class of phosphodiesterase-5 (PDE-5) inhibitors.The drug acts by enhancing the flow of blood to the penis.This product has to be taken around 30-60 minutes before one intends to engage in sensual intercourse and its effect can last for about 4 hours. Since Kamagra acts only if sensual activity takes place, it is thus very important that one follows the precautionary measures required in its usage and consults with a doctor before using Kamagra. Some of the side effects of Kamagra may include headache, flushing, nausea, and problems with vision. Thus, if any side effect occurs, the doctor has to be informed immediately.Although Kamagra has been quite effective in curing erectile dysfunction, it does not treat the cause of the disease. So if one feels any of the symptoms he has to visit a doctor. One thing to make sure before having this medicine is to get a prior prescription which is mandatory in all the cases.