Hi there, It is definitely concerning that your father is having blood in the urine. It is less likely that this is related to the medications and I would not ignore his symptoms. With his history of high blood sugars and hypertension, it sounds like he also has diabetes which is why he is on amaryl. Your dad is going to need a few tests including labs to check his kidney function and an ultrasound of the kidney area and an urine culture to rule out an infection. I think the best way to do this would be to go the primary doctor again and tell him or her the new symptoms. I hope this is helpful to you, Dr. Patel