Publication Date: 5/9/2006
Remember that the information presented here is not intended to replace the care of your own doctor. Before making any changes in the management of your own illness, you should consult your physician or other qualified medical professionals.
Question
I have been having allergic reactions every few months, and each time I was treated with prednisone. About four months ago, my doctor found that my blood sugar was very high and put me on metformin two weeks ago. I had another reaction and was once again given prednisone. I had a terrible reaction and was sick for days. Yesterday, I had another checkup, and my doctor increased my metformin because my sugars had shot up. How long does the spike in sugar caused by prednisone last?Answer
It's hard to say since it depends on the dose of steroids that is used. You don't say how high the blood glucose level went up. If it was quite a bit, you will need temporary extra medications (most likely insulin) to cover the effects of the steroid therapy. If your physician is unsure how to proceed, ask for a referral to a diabetes specialist.
