hii dear thanks for using health care erectile problem is common in diabetes 1st thing you have to do is go for penile Doppler to know blood flow and chance of erection with medications etc you have go for vigra is relative contraindicated for long term use now a days a new molecule will release soon name udanafil which has minimal side effect on heart 2nd new launched product name tetrafol plus which contain phosphodiaesterase which help in erection ,, results are coming good with daily intake up to 2 months 3rd if you have problem than intracavernous injection will also help besides this sunset focus method for erectile dysfunction is very useful read more on google good control on health and diet stay physically fit psychologically soundness of mind stress free life style all this will help take care thank you