Hi, welcome to our site. I am Dr Saumya Mittal.
Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query
First and foremost, what you should explain to your father is that the sugars are being normal and "too good" because he is taking the tablet. So if he stops taking the medicine, sugars are likely to rise higher still.
As it is I would have preferred a tighter control of sugar in a patient I was managing.
I am sure he will probably not understand. This is a very frequent problem we diabeticians face. What I usually recommend to such patients is to check their blood sugars one week after stopping tablets. High results may help you convince him.
Would suggest KFT,
LIPID PROFILE AND ECHO while you are at it
I hope this helps you. Inform the reports mentioned above so i can be of help further. Best of luck.
I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you.
Please do understand that some details could be extracted from a detailed history and examination.
Looking forward to your return query with the details asked so that I can help you further.
(If the answer has helped you, please indicate this)