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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is Increased Dosage Of Metformin Safe For Elevated Fasting Sugar Levels?

I am a male 67 with type 2 diabetes, over the past month or so my fasting results have risen from 6.5-7-2 to 7.9-8.3. I was taking 1 500mg Metformin, however when I noticed the levels rising I added another 500mg after my evening meal. What should I do? As my levels have been very stable for over 6 years. Michael
Wed, 9 Mar 2016
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General & Family Physician 's  Response
Hi,

Thanks for writing to HCM.

Maximum dose of metformin is 2500mg/day provided the creatinine clearance is normal. So if your kidney function is normal it can be taken and no congestive heart failure or any recent/near future radiological contrast study.

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Is Increased Dosage Of Metformin Safe For Elevated Fasting Sugar Levels?

Hi, Thanks for writing to HCM. Maximum dose of metformin is 2500mg/day provided the creatinine clearance is normal. So if your kidney function is normal it can be taken and no congestive heart failure or any recent/near future radiological contrast study. Hope this helped. Do let us know