Men with erectile dysfunction, or impotence, can be treated with a prescription drug called kamagra 100 mg. It functions by boosting penile blood flow. This aids in the erection and maintenance of males. It is a member of the class of drugs known as inhibitors of phosphodiesterase type 5 (PDE 5). If you have low blood pressure, recently suffered a heart attack or stroke, or have serious heart or liver issues, do not use this medication. Before taking it, let your doctor know if you have any of these or any other health issues. If this medication causes you to feel lightheaded, you shouldn't drive. While taking this medication, stay away from alcohol as it raises the possibility of negative effects.