I am a 50-year-old male. I have been a diabetic for more than 20 years. I am taking insulin injections and tablets for diabetes. Due to this, I have been affected by erectile dysfunction for one year. My physician advised Tfil 20 tablets. Initially, I had good results. But I find it is not effective after some time. So, my friend suggested taking Tadalafil 20 tablets. But, now, it is also not effective, and I am not getting a full erection. I am very much upset. My sugar levels fasting are 90-110, and postprandial after two hours are 130-180. I do not have problems with BP, ulcers, cholesterol, or thyroid. Kindly suggest me better medications for my problem.