Being a type 2 diabetic, is that the reason I have ED? I following meds I take are; Medforman twice a day, Lisinopril once a day, Tamsulosin, once a day, Simvastatin, once a day and insulin, 30 units, twice a day. I have taken Viagra and Levitra, and it has not helped and I am 73 years old. I hope you can help me and thanks. Sincerely, Norman